422534155 has 4 divisors (see below), whose sum is σ = 507040992. Its totient is φ = 338027320.

The previous prime is 422534149. The next prime is 422534197. The reversal of 422534155 is 551435224.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 422534155 - 2²³ = 414145547 is a prime.

It is a super-2 number, since 2×422534155² = 357070224283128050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42253411 + ... + 42253420.

It is an arithmetic number, because the mean of its divisors is an integer number (126760248).

Almost surely, 2^422534155 is an apocalyptic number.

422534155 is a deficient number, since it is larger than the sum of its proper divisors (84506837).

422534155 is an equidigital number, since it uses as much as digits as its factorization.

422534155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84506836.

The product of its digits is 24000, while the sum is 31.

The square root of 422534155 is about 20555.6356019462. The cubic root of 422534155 is about 750.3904071115.

Adding to 422534155 its reverse (551435224), we get a palindrome (973969379).

The spelling of 422534155 in words is "four hundred twenty-two million, five hundred thirty-four thousand, one hundred fifty-five".