157530534 has 128 divisors (see below), whose sum is σ = 401863680. Its totient is φ = 40144896.

The previous prime is 157530533. The next prime is 157530547. The reversal of 157530534 is 435035751.

157530534 is digitally balanced in base 3, 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 = 157530495 and 157530504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157530533) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1769962 + ... + 1770050.

It is an arithmetic number, because the mean of its divisors is an integer number (3139560).

Almost surely, 2^157530534 is an apocalyptic number.

157530534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 157530534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200931840).

157530534 is an abundant number, since it is smaller than the sum of its proper divisors (244333146).

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

157530534 is a wasteful number, since it uses less digits than its factorization.

157530534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 157530534 is about 12551.1168427355. The cubic root of 157530534 is about 540.0760455318.

The spelling of 157530534 in words is "one hundred fifty-seven million, five hundred thirty thousand, five hundred thirty-four".