622155131 has 8 divisors (see below), whose sum is σ = 670259184. Its totient is φ = 574086240.

The previous prime is 622155119. The next prime is 622155139. The reversal of 622155131 is 131551226.

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

It is a de Polignac number, because none of the positive numbers 2^k-622155131 is a prime.

It is a super-2 number, since 2×622155131² = 774154014059254322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 622155131.

It is not an unprimeable number, because it can be changed into a prime (622155139) 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, 36725 + ... + 50921.

It is an arithmetic number, because the mean of its divisors is an integer number (83782398).

Almost surely, 2^622155131 is an apocalyptic number.

622155131 is a deficient number, since it is larger than the sum of its proper divisors (48104053).

622155131 is a wasteful number, since it uses less digits than its factorization.

622155131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17581.

The product of its digits is 1800, while the sum is 26.

The square root of 622155131 is about 24943.0377259868. The cubic root of 622155131 is about 853.6887580716.

The spelling of 622155131 in words is "six hundred twenty-two million, one hundred fifty-five thousand, one hundred thirty-one".