156229072 has 10 divisors (see below), whose sum is σ = 302693858. Its totient is φ = 78114528.

The previous prime is 156229069. The next prime is 156229079. The reversal of 156229072 is 270922651.

It can be written as a sum of positive squares in only one way, i.e., 90554256 + 65674816 = 9516^2 + 8104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156229079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4882143 + ... + 4882174.

Almost surely, 2^156229072 is an apocalyptic number.

It is an amenable number.

156229072 is a deficient number, since it is larger than the sum of its proper divisors (146464786).

156229072 is an equidigital number, since it uses as much as digits as its factorization.

156229072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9764325 (or 9764319 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 156229072 is about 12499.1628519673. The cubic root of 156229072 is about 538.5846244960.

The spelling of 156229072 in words is "one hundred fifty-six million, two hundred twenty-nine thousand, seventy-two".