422157951 has 6 divisors (see below), whose sum is σ = 609783720. Its totient is φ = 281438628.

The previous prime is 422157929. The next prime is 422157973. The reversal of 422157951 is 159751224.

It is an interprime number because it is at equal distance from previous prime (422157929) and next prime (422157973).

It is not a de Polignac number, because 422157951 - 2⁵ = 422157919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422157451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23453211 + ... + 23453228.

It is an arithmetic number, because the mean of its divisors is an integer number (101630620).

Almost surely, 2^422157951 is an apocalyptic number.

422157951 is a deficient number, since it is larger than the sum of its proper divisors (187625769).

422157951 is a wasteful number, since it uses less digits than its factorization.

422157951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46906445 (or 46906442 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 422157951 is about 20546.4826916920. The cubic root of 422157951 is about 750.1676371942.

The spelling of 422157951 in words is "four hundred twenty-two million, one hundred fifty-seven thousand, nine hundred fifty-one".