1197506025 has 45 divisors (see below), whose sum is σ = 2221083381. Its totient is φ = 637839360.

The previous prime is 1197505973. The next prime is 1197506029. The reversal of 1197506025 is 5206057911.

The square root of 1197506025 is 34605.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 74183769 + 1123322256 = 8613^2 + 33516^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 1197506025 - 2¹⁵ = 1197473257 is a prime.

It is a super-2 number, since 2×1197506025² = 2868041359822601250, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1197506029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1556841 + ... + 1557609.

Almost surely, 2^1197506025 is an apocalyptic number.

1197506025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1197506025 is the 34605-th square number.

1197506025 is the 17303-rd centered octagonal number.

It is an amenable number.

1197506025 is a deficient number, since it is larger than the sum of its proper divisors (1023577356).

1197506025 is an frugal number, since it uses more digits than its factorization.

1197506025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The cubic root of 1197506025 is about 1061.9218797272.

Multiplying 1197506025 by its sum of digits (36), we get a square (43110216900 = 207630²).

The spelling of 1197506025 in words is "one billion, one hundred ninety-seven million, five hundred six thousand, twenty-five".