1219057225 has 9 divisors (see below), whose sum is σ = 1511847463. Its totient is φ = 975106120.

The previous prime is 1219057207. The next prime is 1219057249. The reversal of 1219057225 is 5227509121.

The square root of 1219057225 is 34915.

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

It can be written as a sum of positive squares in only one way, i.e., 438860601 + 780196624 = 20949^2 + 27932^2 .

It is not a de Polignac number, because 1219057225 - 2⁵ = 1219057193 is a prime.

It is a super-2 number, since 2×1219057225² = 2972201035649401250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 171084 + ... + 178066.

Almost surely, 2^1219057225 is an apocalyptic number.

1219057225 is the 34915-th square number.

1219057225 is the 17458-th centered octagonal number.

It is an amenable number.

1219057225 is a deficient number, since it is larger than the sum of its proper divisors (292790238).

1219057225 is an frugal number, since it uses more digits than its factorization.

1219057225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13976 (or 6988 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The cubic root of 1219057225 is about 1068.2544179307.

The spelling of 1219057225 in words is "one billion, two hundred nineteen million, fifty-seven thousand, two hundred twenty-five".