157175213 has 8 divisors (see below), whose sum is σ = 169454208. Its totient is φ = 144923184.

The previous prime is 157175209. The next prime is 157175231. The reversal of 157175213 is 312571751.

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 157175213 - 2² = 157175209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 157175213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157175713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6320 + ... + 18822.

It is an arithmetic number, because the mean of its divisors is an integer number (21181776).

Almost surely, 2^157175213 is an apocalyptic number.

157175213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

157175213 is a deficient number, since it is larger than the sum of its proper divisors (12278995).

157175213 is a wasteful number, since it uses less digits than its factorization.

157175213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13483.

The product of its digits is 7350, while the sum is 32.

The square root of 157175213 is about 12536.9538963817. The cubic root of 157175213 is about 539.6696802423.

The spelling of 157175213 in words is "one hundred fifty-seven million, one hundred seventy-five thousand, two hundred thirteen".