157671515 has 16 divisors (see below), whose sum is σ = 200675232. Its totient is φ = 118516224.

The previous prime is 157671491. The next prime is 157671517. The reversal of 157671515 is 515176751.

157671515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 157671515 - 2¹⁶ = 157605979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157671517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65717 + ... + 68073.

It is an arithmetic number, because the mean of its divisors is an integer number (12542202).

Almost surely, 2^157671515 is an apocalyptic number.

157671515 is a deficient number, since it is larger than the sum of its proper divisors (43003717).

157671515 is a wasteful number, since it uses less digits than its factorization.

157671515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166.

The product of its digits is 36750, while the sum is 38.

The square root of 157671515 is about 12556.7318598431. The cubic root of 157671515 is about 540.2371100918.

The spelling of 157671515 in words is "one hundred fifty-seven million, six hundred seventy-one thousand, five hundred fifteen".