156122225 has 24 divisors (see below), whose sum is σ = 228884160. Its totient is φ = 103360320.

The previous prime is 156122191. The next prime is 156122257. The reversal of 156122225 is 522221651.

156122225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156122225 - 2¹⁰ = 156121201 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 156122194 and 156122203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10307 + ... + 20456.

It is an arithmetic number, because the mean of its divisors is an integer number (9536840).

Almost surely, 2^156122225 is an apocalyptic number.

It is an amenable number.

156122225 is a deficient number, since it is larger than the sum of its proper divisors (72761935).

156122225 is a wasteful number, since it uses less digits than its factorization.

156122225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30809 (or 30804 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 156122225 is about 12494.8879546797. The cubic root of 156122225 is about 538.4618149266.

Adding to 156122225 its reverse (522221651), we get a palindrome (678343876).

The spelling of 156122225 in words is "one hundred fifty-six million, one hundred twenty-two thousand, two hundred twenty-five".