156125004 has 24 divisors (see below), whose sum is σ = 416333568. Its totient is φ = 44607120.

The previous prime is 156125003. The next prime is 156125017. The reversal of 156125004 is 400521651.

It is not an unprimeable number, because it can be changed into a prime (156125003) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 929232 + ... + 929399.

It is an arithmetic number, because the mean of its divisors is an integer number (17347232).

Almost surely, 2^156125004 is an apocalyptic number.

156125004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

156125004 is an abundant number, since it is smaller than the sum of its proper divisors (260208564).

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

156125004 is a wasteful number, since it uses less digits than its factorization.

156125004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858645 (or 1858643 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 156125004 is about 12494.9991596638. Note that the first 3 decimals coincide. The cubic root of 156125004 is about 538.4650098091.

Adding to 156125004 its reverse (400521651), we get a palindrome (556646655).

It can be divided in two parts, 1561 and 25004, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 156125004 in words is "one hundred fifty-six million, one hundred twenty-five thousand, four".