157313131573 has 8 divisors (see below), whose sum is σ = 169425820928. Its totient is φ = 145202110704.

The previous prime is 157313131543. The next prime is 157313131607. The reversal of 157313131573 is 375131313751.

It is a happy number.

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 157313131573 - 2⁵ = 157313131541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157313131543) 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, 217761 + ... + 601702.

It is an arithmetic number, because the mean of its divisors is an integer number (21178227616).

Almost surely, 2^157313131573 is an apocalyptic number.

157313131573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

157313131573 is a deficient number, since it is larger than the sum of its proper divisors (12112689355).

157313131573 is a wasteful number, since it uses less digits than its factorization.

157313131573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834243.

The product of its digits is 99225, while the sum is 40.

The spelling of 157313131573 in words is "one hundred fifty-seven billion, three hundred thirteen million, one hundred thirty-one thousand, five hundred seventy-three".