157641371 has 4 divisors (see below), whose sum is σ = 159861744. Its totient is φ = 155421000.

The previous prime is 157641329. The next prime is 157641377. The reversal of 157641371 is 173146751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173146751 = 17 ⋅10185103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157641371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157641377) 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, 1110080 + ... + 1110221.

It is an arithmetic number, because the mean of its divisors is an integer number (39965436).

Almost surely, 2^157641371 is an apocalyptic number.

157641371 is a deficient number, since it is larger than the sum of its proper divisors (2220373).

157641371 is an equidigital number, since it uses as much as digits as its factorization.

157641371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220372.

The product of its digits is 17640, while the sum is 35.

The square root of 157641371 is about 12555.5314901441. The cubic root of 157641371 is about 540.2026799765.

The spelling of 157641371 in words is "one hundred fifty-seven million, six hundred forty-one thousand, three hundred seventy-one".