157972205 has 8 divisors (see below), whose sum is σ = 192780000. Its totient is φ = 124235536.

The previous prime is 157972201. The next prime is 157972223. The reversal of 157972205 is 502279751.

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 157972205 - 2² = 157972201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157972201) 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, 267455 + ... + 268044.

It is an arithmetic number, because the mean of its divisors is an integer number (24097500).

Almost surely, 2^157972205 is an apocalyptic number.

It is an amenable number.

157972205 is a deficient number, since it is larger than the sum of its proper divisors (34807795).

157972205 is an equidigital number, since it uses as much as digits as its factorization.

157972205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535563.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 157972205 is about 12568.6994156118. The cubic root of 157972205 is about 540.5803146378.

The spelling of 157972205 in words is "one hundred fifty-seven million, nine hundred seventy-two thousand, two hundred five".