156315225 has 24 divisors (see below), whose sum is σ = 281937312. Its totient is φ = 75788800.

The previous prime is 156315217. The next prime is 156315227. The reversal of 156315225 is 522513651.

It is a happy number.

It is not a de Polignac number, because 156315225 - 2³ = 156315217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 156315192 and 156315201.

It is not an unprimeable number, because it can be changed into a prime (156315227) 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 23 ways as a sum of consecutive naturals, for example, 93912 + ... + 95561.

It is an arithmetic number, because the mean of its divisors is an integer number (11747388).

Almost surely, 2^156315225 is an apocalyptic number.

156315225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

156315225 is a deficient number, since it is larger than the sum of its proper divisors (125622087).

156315225 is a wasteful number, since it uses less digits than its factorization.

156315225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189497 (or 189492 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 156315225 is about 12502.6087277816. The cubic root of 156315225 is about 538.6836076834.

Adding to 156315225 its reverse (522513651), we get a palindrome (678828876).

The spelling of 156315225 in words is "one hundred fifty-six million, three hundred fifteen thousand, two hundred twenty-five".