157899227 has 8 divisors (see below), whose sum is σ = 159645696. Its totient is φ = 156160872.

The previous prime is 157899223. The next prime is 157899233. The reversal of 157899227 is 722998751.

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 157899227 - 2² = 157899223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157899221) 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, 42278 + ... + 45860.

It is an arithmetic number, because the mean of its divisors is an integer number (19955712).

Almost surely, 2^157899227 is an apocalyptic number.

157899227 is a deficient number, since it is larger than the sum of its proper divisors (1746469).

157899227 is a wasteful number, since it uses less digits than its factorization.

157899227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057.

The product of its digits is 635040, while the sum is 50.

The square root of 157899227 is about 12565.7959158980. The cubic root of 157899227 is about 540.4970583318.

The spelling of 157899227 in words is "one hundred fifty-seven million, eight hundred ninety-nine thousand, two hundred twenty-seven".