157571139 has 8 divisors (see below), whose sum is σ = 229194432. Its totient is φ = 95497640.

The previous prime is 157571129. The next prime is 157571149. The reversal of 157571139 is 931175751.

It is an interprime number because it is at equal distance from previous prime (157571129) and next prime (157571149).

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 157571139 - 2⁵ = 157571107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157571097 and 157571106.

It is not an unprimeable number, because it can be changed into a prime (157571129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2387409 + ... + 2387474.

It is an arithmetic number, because the mean of its divisors is an integer number (28649304).

Almost surely, 2^157571139 is an apocalyptic number.

157571139 is a deficient number, since it is larger than the sum of its proper divisors (71623293).

157571139 is a wasteful number, since it uses less digits than its factorization.

157571139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774897.

The product of its digits is 33075, while the sum is 39.

The square root of 157571139 is about 12552.7343236444. The cubic root of 157571139 is about 540.1224447987.

The spelling of 157571139 in words is "one hundred fifty-seven million, five hundred seventy-one thousand, one hundred thirty-nine".