152257730 has 8 divisors (see below), whose sum is σ = 274063932. Its totient is φ = 60903088.

The previous prime is 152257717. The next prime is 152257739. The reversal of 152257730 is 37752251.

It can be written as a sum of positive squares in 2 ways, for example, as 137334961 + 14922769 = 11719^2 + 3863^2 .

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 (152257739) 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, 7612877 + ... + 7612896.

Almost surely, 2^152257730 is an apocalyptic number.

152257730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152257730 is a deficient number, since it is larger than the sum of its proper divisors (121806202).

152257730 is a wasteful number, since it uses less digits than its factorization.

152257730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15225780.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 152257730 is about 12339.2759106845. The cubic root of 152257730 is about 533.9817941396.

The spelling of 152257730 in words is "one hundred fifty-two million, two hundred fifty-seven thousand, seven hundred thirty".