157650289 has 8 divisors (see below), whose sum is σ = 163710792. Its totient is φ = 151695360.

The previous prime is 157650281. The next prime is 157650319. The reversal of 157650289 is 982056751.

157650289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1600225 + 156050064 = 1265^2 + 12492^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 157650289 - 2³ = 157650281 is a prime.

It is a super-2 number, since 2×157650289² = 49707227243567042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157650281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23344 + ... + 29329.

It is an arithmetic number, because the mean of its divisors is an integer number (20463849).

Almost surely, 2^157650289 is an apocalyptic number.

It is an amenable number.

157650289 is a deficient number, since it is larger than the sum of its proper divisors (6060503).

157650289 is an equidigital number, since it uses as much as digits as its factorization.

157650289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52787.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 157650289 is about 12555.8866273951. The cubic root of 157650289 is about 540.2128664663.

The spelling of 157650289 in words is "one hundred fifty-seven million, six hundred fifty thousand, two hundred eighty-nine".