156224133 has 20 divisors (see below), whose sum is σ = 251325228. Its totient is φ = 96137280.

The previous prime is 156224087. The next prime is 156224191. The reversal of 156224133 is 331422651.

156224133 is a `hidden beast` number, since 1 + 5 + 622 + 4 + 1 + 33 = 666.

156224133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35070084 + 121154049 = 5922^2 + 11007^2 .

It is not a de Polignac number, because 156224133 - 2¹⁴ = 156207749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 156224097 and 156224106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156224333) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73128 + ... + 75233.

Almost surely, 2^156224133 is an apocalyptic number.

156224133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

156224133 is a deficient number, since it is larger than the sum of its proper divisors (95101095).

156224133 is a wasteful number, since it uses less digits than its factorization.

156224133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148386 (or 148377 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 156224133 is about 12498.9652771739. The cubic root of 156224133 is about 538.5789488612.

Adding to 156224133 its reverse (331422651), we get a palindrome (487646784).

The spelling of 156224133 in words is "one hundred fifty-six million, two hundred twenty-four thousand, one hundred thirty-three".