157795197 has 8 divisors (see below), whose sum is σ = 240449856. Its totient is φ = 90168672.

The previous prime is 157795189. The next prime is 157795273. The reversal of 157795197 is 791597751.

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

It is not a de Polignac number, because 157795197 - 2³ = 157795189 is a prime.

It is a super-3 number, since 3×157795197³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157795397) 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, 3757008 + ... + 3757049.

It is an arithmetic number, because the mean of its divisors is an integer number (30056232).

Almost surely, 2^157795197 is an apocalyptic number.

It is an amenable number.

157795197 is a deficient number, since it is larger than the sum of its proper divisors (82654659).

157795197 is an equidigital number, since it uses as much as digits as its factorization.

157795197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514067.

The product of its digits is 694575, while the sum is 51.

The square root of 157795197 is about 12561.6558223827. The cubic root of 157795197 is about 540.3783322664.

The spelling of 157795197 in words is "one hundred fifty-seven million, seven hundred ninety-five thousand, one hundred ninety-seven".