94220531 has 4 divisors (see below), whose sum is σ = 94243032. Its totient is φ = 94198032.

The previous prime is 94220513. The next prime is 94220549. The reversal of 94220531 is 13502249.

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

It is an interprime number because it is at equal distance from previous prime (94220513) and next prime (94220549).

It is a cyclic number.

It is not a de Polignac number, because 94220531 - 2²² = 90026227 is a prime.

It is a super-2 number, since 2×94220531² = 17755016923843922, 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 94220531.

It is not an unprimeable number, because it can be changed into a prime (94220551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2906 + ... + 14031.

It is an arithmetic number, because the mean of its divisors is an integer number (23560758).

Almost surely, 2^94220531 is an apocalyptic number.

94220531 is a deficient number, since it is larger than the sum of its proper divisors (22501).

94220531 is a wasteful number, since it uses less digits than its factorization.

94220531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22500.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 94220531 is about 9706.7260701021. The cubic root of 94220531 is about 455.0388905292.

The spelling of 94220531 in words is "ninety-four million, two hundred twenty thousand, five hundred thirty-one".