157939117 has 8 divisors (see below), whose sum is σ = 180936000. Its totient is φ = 135050784.

The previous prime is 157939097. The next prime is 157939157. The reversal of 157939117 is 711939751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157939117 - 2¹¹ = 157937069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157939157) 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 7 ways as a sum of consecutive naturals, for example, 23992 + ... + 29857.

It is an arithmetic number, because the mean of its divisors is an integer number (22617000).

Almost surely, 2^157939117 is an apocalyptic number.

It is an amenable number.

157939117 is a deficient number, since it is larger than the sum of its proper divisors (22996883).

157939117 is an equidigital number, since it uses as much as digits as its factorization.

157939117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54275.

The product of its digits is 59535, while the sum is 43.

The square root of 157939117 is about 12567.3830609240. The cubic root of 157939117 is about 540.5425696636.

The spelling of 157939117 in words is "one hundred fifty-seven million, nine hundred thirty-nine thousand, one hundred seventeen".