157012005 has 16 divisors (see below), whose sum is σ = 253200384. Its totient is φ = 83079360.

The previous prime is 157011997. The next prime is 157012073. The reversal of 157012005 is 500210751.

It is not a de Polignac number, because 157012005 - 2³ = 157011997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39306 + ... + 43115.

It is an arithmetic number, because the mean of its divisors is an integer number (15825024).

Almost surely, 2^157012005 is an apocalyptic number.

157012005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157012005 is a deficient number, since it is larger than the sum of its proper divisors (96188379).

157012005 is a wasteful number, since it uses less digits than its factorization.

157012005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82556.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 157012005 is about 12530.4431286368. The cubic root of 157012005 is about 539.4828210223.

Adding to 157012005 its reverse (500210751), we get a palindrome (657222756).

The spelling of 157012005 in words is "one hundred fifty-seven million, twelve thousand, five".