157739957 has 24 divisors (see below), whose sum is σ = 184200000. Its totient is φ = 134424576.

The previous prime is 157739947. The next prime is 157739963. The reversal of 157739957 is 759937751.

It is not a de Polignac number, because 157739957 - 2¹² = 157735861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157739899 and 157739908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157739947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125669 + ... + 126917.

It is an arithmetic number, because the mean of its divisors is an integer number (7675000).

Almost surely, 2^157739957 is an apocalyptic number.

157739957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

157739957 is a deficient number, since it is larger than the sum of its proper divisors (26460043).

157739957 is a wasteful number, since it uses less digits than its factorization.

157739957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1308 counting only the distinct ones).

The product of its digits is 2083725, while the sum is 53.

The square root of 157739957 is about 12559.4568751997. The cubic root of 157739957 is about 540.3152674338.

The spelling of 157739957 in words is "one hundred fifty-seven million, seven hundred thirty-nine thousand, nine hundred fifty-seven".