157747733 has 16 divisors (see below), whose sum is σ = 191721600. Its totient is φ = 127807680.

The previous prime is 157747721. The next prime is 157747739. The reversal of 157747733 is 337747751.

It is a de Polignac number, because none of the positive numbers 2^k-157747733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157747739) 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, 14873 + ... + 23166.

It is an arithmetic number, because the mean of its divisors is an integer number (11982600).

Almost surely, 2^157747733 is an apocalyptic number.

157747733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

157747733 is a deficient number, since it is larger than the sum of its proper divisors (33973867).

157747733 is a wasteful number, since it uses less digits than its factorization.

157747733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38092.

The product of its digits is 432180, while the sum is 44.

The square root of 157747733 is about 12559.7664389112. The cubic root of 157747733 is about 540.3241458067.

The spelling of 157747733 in words is "one hundred fifty-seven million, seven hundred forty-seven thousand, seven hundred thirty-three".