1197000901 has 4 divisors (see below), whose sum is σ = 1197077292. Its totient is φ = 1196924512.

The previous prime is 1197000881. The next prime is 1197000907. The reversal of 1197000901 is 1090007911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 937951876 + 259049025 = 30626^2 + 16095^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197000901 - 2¹⁹ = 1196476613 is a prime.

It is a super-2 number, since 2×1197000901² = 2865622313989623602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1197000901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197000907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5176 + ... + 49201.

It is an arithmetic number, because the mean of its divisors is an integer number (299269323).

Almost surely, 2^1197000901 is an apocalyptic number.

It is an amenable number.

1197000901 is a deficient number, since it is larger than the sum of its proper divisors (76391).

1197000901 is an equidigital number, since it uses as much as digits as its factorization.

1197000901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76390.

The product of its (nonzero) digits is 567, while the sum is 28.

The square root of 1197000901 is about 34597.7008051113. The cubic root of 1197000901 is about 1061.7725477949.

The spelling of 1197000901 in words is "one billion, one hundred ninety-seven million, nine hundred one", and thus it is an aban number.