427162157 has 2 divisors, whose sum is σ = 427162158. Its totient is φ = 427162156.

The previous prime is 427162117. The next prime is 427162159. The reversal of 427162157 is 751261724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357172201 + 69989956 = 18899^2 + 8366^2 .

It is a cyclic number.

It is not a de Polignac number, because 427162157 - 2⁶ = 427162093 is a prime.

Together with 427162159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427162159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213581078 + 213581079.

It is an arithmetic number, because the mean of its divisors is an integer number (213581079).

Almost surely, 2^427162157 is an apocalyptic number.

It is an amenable number.

427162157 is a deficient number, since it is larger than the sum of its proper divisors (1).

427162157 is an equidigital number, since it uses as much as digits as its factorization.

427162157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 35.

The square root of 427162157 is about 20667.9016109522. The cubic root of 427162157 is about 753.1201317776.

The spelling of 427162157 in words is "four hundred twenty-seven million, one hundred sixty-two thousand, one hundred fifty-seven".