157227977 has 8 divisors (see below), whose sum is σ = 164209920. Its totient is φ = 150258240.

The previous prime is 157227971. The next prime is 157227997. The reversal of 157227977 is 779722751.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157227977 is a prime.

It is a super-4 number, since 4×157227977⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157227971) 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, 31952 + ... + 36542.

It is an arithmetic number, because the mean of its divisors is an integer number (20526240).

Almost surely, 2^157227977 is an apocalyptic number.

It is an amenable number.

157227977 is a deficient number, since it is larger than the sum of its proper divisors (6981943).

157227977 is a wasteful number, since it uses less digits than its factorization.

157227977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103.

The product of its digits is 432180, while the sum is 47.

The square root of 157227977 is about 12539.0580587220. The cubic root of 157227977 is about 539.7300628448.

The spelling of 157227977 in words is "one hundred fifty-seven million, two hundred twenty-seven thousand, nine hundred seventy-seven".