157098317 has 4 divisors (see below), whose sum is σ = 159443136. Its totient is φ = 154753500.

The previous prime is 157098313. The next prime is 157098323. The reversal of 157098317 is 713890751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157098317 - 2² = 157098313 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 (157098313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1172309 + ... + 1172442.

It is an arithmetic number, because the mean of its divisors is an integer number (39860784).

Almost surely, 2^157098317 is an apocalyptic number.

It is an amenable number.

157098317 is a deficient number, since it is larger than the sum of its proper divisors (2344819).

157098317 is an equidigital number, since it uses as much as digits as its factorization.

157098317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344818.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 157098317 is about 12533.8867475337. The cubic root of 157098317 is about 539.5816570138.

The spelling of 157098317 in words is "one hundred fifty-seven million, ninety-eight thousand, three hundred seventeen".