157729959 has 6 divisors (see below), whose sum is σ = 227832176. Its totient is φ = 105153300.

The previous prime is 157729939. The next prime is 157729969. The reversal of 157729959 is 959927751.

157729959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157729959 - 2⁸ = 157729703 is a prime.

It is a super-2 number, since 2×157729959² = 49757479932283362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157729909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8762767 + ... + 8762784.

Almost surely, 2^157729959 is an apocalyptic number.

157729959 is a deficient number, since it is larger than the sum of its proper divisors (70102217).

157729959 is a wasteful number, since it uses less digits than its factorization.

157729959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17525557 (or 17525554 counting only the distinct ones).

The product of its digits is 1786050, while the sum is 54.

The square root of 157729959 is about 12559.0588421267. The cubic root of 157729959 is about 540.3038516280.

The spelling of 157729959 in words is "one hundred fifty-seven million, seven hundred twenty-nine thousand, nine hundred fifty-nine".