157395017 has 8 divisors (see below), whose sum is σ = 169934856. Its totient is φ = 144916992.

The previous prime is 157394971. The next prime is 157395041. The reversal of 157395017 is 710593751.

It can be written as a sum of positive squares in 4 ways, for example, as 26429881 + 130965136 = 5141^2 + 11444^2 .

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 157395017 - 2⁶ = 157394953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157395047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10088 + ... + 20409.

It is an arithmetic number, because the mean of its divisors is an integer number (21241857).

Almost surely, 2^157395017 is an apocalyptic number.

It is an amenable number.

157395017 is a deficient number, since it is larger than the sum of its proper divisors (12539839).

157395017 is a wasteful number, since it uses less digits than its factorization.

157395017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30907.

The product of its (nonzero) digits is 33075, while the sum is 38.

The square root of 157395017 is about 12545.7170779513. The cubic root of 157395017 is about 539.9211327435.

The spelling of 157395017 in words is "one hundred fifty-seven million, three hundred ninety-five thousand, seventeen".