157784652 has 48 divisors (see below), whose sum is σ = 411626880. Its totient is φ = 52266384.

The previous prime is 157784647. The next prime is 157784663. The reversal of 157784652 is 256487751.

157784652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157784652² = 49791992813522208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157784598 and 157784607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13123 + ... + 22085.

It is an arithmetic number, because the mean of its divisors is an integer number (8575560).

Almost surely, 2^157784652 is an apocalyptic number.

157784652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157784652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205813440).

157784652 is an abundant number, since it is smaller than the sum of its proper divisors (253842228).

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

157784652 is a wasteful number, since it uses less digits than its factorization.

157784652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9139 (or 9131 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 157784652 is about 12561.2360856725. The cubic root of 157784652 is about 540.3662946874.

The spelling of 157784652 in words is "one hundred fifty-seven million, seven hundred eighty-four thousand, six hundred fifty-two".