156242530 has 8 divisors (see below), whose sum is σ = 281236572. Its totient is φ = 62497008.

The previous prime is 156242503. The next prime is 156242539. The reversal of 156242530 is 35242651.

It can be written as a sum of positive squares in 2 ways, for example, as 150724729 + 5517801 = 12277^2 + 2349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (156242539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7812117 + ... + 7812136.

Almost surely, 2^156242530 is an apocalyptic number.

156242530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156242530 is a deficient number, since it is larger than the sum of its proper divisors (124994042).

156242530 is a wasteful number, since it uses less digits than its factorization.

156242530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15624260.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 156242530 is about 12499.7011964287. The cubic root of 156242530 is about 538.6000891034.

The spelling of 156242530 in words is "one hundred fifty-six million, two hundred forty-two thousand, five hundred thirty".