156134772 has 18 divisors (see below), whose sum is σ = 394674098. Its totient is φ = 52044912.

The previous prime is 156134743. The next prime is 156134791. The reversal of 156134772 is 277431651.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 149964516 + 6170256 = 12246^2 + 2484^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4337077 = 156134772 / (1 + 5 + 6 + 1 + 3 + 4 + 7 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2168503 + ... + 2168574.

Almost surely, 2^156134772 is an apocalyptic number.

156134772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156134772 is an abundant number, since it is smaller than the sum of its proper divisors (238539326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156134772 is a wasteful number, since it uses less digits than its factorization.

156134772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337087 (or 4337082 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 156134772 is about 12495.3900299270. The cubic root of 156134772 is about 538.4762393077.

The spelling of 156134772 in words is "one hundred fifty-six million, one hundred thirty-four thousand, seven hundred seventy-two".