156038434 has 4 divisors (see below), whose sum is σ = 234057654. Its totient is φ = 78019216.

The previous prime is 156038429. The next prime is 156038447. The reversal of 156038434 is 434830651.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434830651 = 3329 ⋅130619.

It can be written as a sum of positive squares in only one way, i.e., 133333209 + 22705225 = 11547^2 + 4765^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 156038434.

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 as a sum of consecutive naturals, namely, 39009607 + ... + 39009610.

Almost surely, 2^156038434 is an apocalyptic number.

156038434 is a deficient number, since it is larger than the sum of its proper divisors (78019220).

156038434 is an equidigital number, since it uses as much as digits as its factorization.

156038434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78019219.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 156038434 is about 12491.5344934079. The cubic root of 156038434 is about 538.3654666371.

The spelling of 156038434 in words is "one hundred fifty-six million, thirty-eight thousand, four hundred thirty-four".