156725252 has 6 divisors (see below), whose sum is σ = 274269198. Its totient is φ = 78362624.

The previous prime is 156725209. The next prime is 156725267. The reversal of 156725252 is 252527651.

It can be written as a sum of positive squares in only one way, i.e., 122899396 + 33825856 = 11086^2 + 5816^2 .

It is a super-2 number, since 2×156725252² = 49125609228927008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19590653 + ... + 19590660.

It is an arithmetic number, because the mean of its divisors is an integer number (45711533).

Almost surely, 2^156725252 is an apocalyptic number.

It is an amenable number.

156725252 is a deficient number, since it is larger than the sum of its proper divisors (117543946).

156725252 is a wasteful number, since it uses less digits than its factorization.

156725252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39181317 (or 39181315 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 156725252 is about 12518.9956466164. The cubic root of 156725252 is about 539.1541994648.

The spelling of 156725252 in words is "one hundred fifty-six million, seven hundred twenty-five thousand, two hundred fifty-two".