157224893 has 8 divisors (see below), whose sum is σ = 179819520. Its totient is φ = 134663760.

The previous prime is 157224887. The next prime is 157224919. The reversal of 157224893 is 398422751.

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

It is not a de Polignac number, because 157224893 - 2⁸ = 157224637 is a prime.

It is a super-2 number, since 2×157224893² = 49439333957722898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157224893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157224833) 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, 2663 + ... + 17931.

It is an arithmetic number, because the mean of its divisors is an integer number (22477440).

Almost surely, 2^157224893 is an apocalyptic number.

It is an amenable number.

157224893 is a deficient number, since it is larger than the sum of its proper divisors (22594627).

157224893 is a wasteful number, since it uses less digits than its factorization.

157224893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16747.

The product of its digits is 120960, while the sum is 41.

The square root of 157224893 is about 12538.9350823744. The cubic root of 157224893 is about 539.7265339173.

The spelling of 157224893 in words is "one hundred fifty-seven million, two hundred twenty-four thousand, eight hundred ninety-three".