315274389049 has 9 divisors (see below), whose sum is σ = 334920996397. Its totient is φ = 296719852864.

The previous prime is 315274388999. The next prime is 315274389167. The reversal of 315274389049 is 940983472513.

The square root of 315274389049 is 561493.

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 63804234025 + 251470155024 = 252595^2 + 501468^2 .

It is not a de Polignac number, because 315274389049 - 2¹⁵ = 315274356281 is a prime.

It is a super-2 number, since 2×315274389049² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315274389949) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9528867 + ... + 9561895.

Almost surely, 2^315274389049 is an apocalyptic number.

315274389049 is the 561493-rd square number.

315274389049 is the 280747-th centered octagonal number.

It is an amenable number.

315274389049 is a deficient number, since it is larger than the sum of its proper divisors (19646607348).

315274389049 is an frugal number, since it uses more digits than its factorization.

315274389049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66092 (or 33046 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

It can be divided in two parts, 3152743 and 89049, that added together give a cube (3241792 = 148³).

The spelling of 315274389049 in words is "three hundred fifteen billion, two hundred seventy-four million, three hundred eighty-nine thousand, forty-nine".