156133225 has 6 divisors (see below), whose sum is σ = 193605230. Its totient is φ = 124906560.

The previous prime is 156133217. The next prime is 156133231. The reversal of 156133225 is 522331651.

It can be written as a sum of positive squares in 3 ways, for example, as 35748441 + 120384784 = 5979^2 + 10972^2 .

It is not a de Polignac number, because 156133225 - 2³ = 156133217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 156133193 and 156133202.

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, 3122640 + ... + 3122689.

Almost surely, 2^156133225 is an apocalyptic number.

It is an amenable number.

156133225 is a deficient number, since it is larger than the sum of its proper divisors (37472005).

156133225 is an equidigital number, since it uses as much as digits as its factorization.

156133225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245339 (or 6245334 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 156133225 is about 12495.3281269441. The cubic root of 156133225 is about 538.4744608751.

Adding to 156133225 its reverse (522331651), we get a palindrome (678464876).

The spelling of 156133225 in words is "one hundred fifty-six million, one hundred thirty-three thousand, two hundred twenty-five".