157771113 has 4 divisors (see below), whose sum is σ = 210361488. Its totient is φ = 105180740.

The previous prime is 157771109. The next prime is 157771127. The reversal of 157771113 is 311177751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311177751 = 3 ⋅103725917.

It is a cyclic number.

It is not a de Polignac number, because 157771113 - 2² = 157771109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157771613) 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, 26295183 + ... + 26295188.

It is an arithmetic number, because the mean of its divisors is an integer number (52590372).

Almost surely, 2^157771113 is an apocalyptic number.

It is an amenable number.

157771113 is a deficient number, since it is larger than the sum of its proper divisors (52590375).

157771113 is an equidigital number, since it uses as much as digits as its factorization.

157771113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52590374.

The product of its digits is 5145, while the sum is 33.

The square root of 157771113 is about 12560.6971542188. The cubic root of 157771113 is about 540.3508385400.

The spelling of 157771113 in words is "one hundred fifty-seven million, seven hundred seventy-one thousand, one hundred thirteen".