157143636 has 108 divisors (see below), whose sum is σ = 449231328. Its totient is φ = 46208448.

The previous prime is 157143617. The next prime is 157143647. The reversal of 157143636 is 636341751.

157143636 is a `hidden beast` number, since 1 + 5 + 7 + 14 + 3 + 636 = 666.

157143636 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

157143636 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 157143636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 139371 + ... + 140493.

Almost surely, 2^157143636 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 157143636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224615664).

157143636 is an abundant number, since it is smaller than the sum of its proper divisors (292087692).

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

157143636 is a wasteful number, since it uses less digits than its factorization.

157143636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1164 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 157143636 is about 12535.6944761748. The cubic root of 157143636 is about 539.6335373703.

The spelling of 157143636 in words is "one hundred fifty-seven million, one hundred forty-three thousand, six hundred thirty-six".