157224536 has 48 divisors (see below), whose sum is σ = 347335200. Its totient is φ = 66515904.

The previous prime is 157224523. The next prime is 157224539. The reversal of 157224536 is 635422751.

157224536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 157224496 and 157224505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157224539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28430 + ... + 33506.

It is an arithmetic number, because the mean of its divisors is an integer number (7236150).

Almost surely, 2^157224536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157224536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173667600).

157224536 is an abundant number, since it is smaller than the sum of its proper divisors (190110664).

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

157224536 is a wasteful number, since it uses less digits than its factorization.

157224536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5176 (or 5165 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 157224536 is about 12538.9208467077. The cubic root of 157224536 is about 539.7261254101.

The spelling of 157224536 in words is "one hundred fifty-seven million, two hundred twenty-four thousand, five hundred thirty-six".