126215564 has 12 divisors (see below), whose sum is σ = 223988688. Its totient is φ = 62218800.

The previous prime is 126215561. The next prime is 126215567. The reversal of 126215564 is 465512621.

It is an interprime number because it is at equal distance from previous prime (126215561) and next prime (126215567).

It is a self number, because there is not a number n which added to its sum of digits gives 126215564.

It is not an unprimeable number, because it can be changed into a prime (126215561) 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, 221927 + ... + 222494.

It is an arithmetic number, because the mean of its divisors is an integer number (18665724).

Almost surely, 2^126215564 is an apocalyptic number.

It is an amenable number.

126215564 is a deficient number, since it is larger than the sum of its proper divisors (97773124).

126215564 is a wasteful number, since it uses less digits than its factorization.

126215564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444496 (or 444494 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 126215564 is about 11234.5700407270. The cubic root of 126215564 is about 501.6155265262.

The spelling of 126215564 in words is "one hundred twenty-six million, two hundred fifteen thousand, five hundred sixty-four".