126615044 has 12 divisors (see below), whose sum is σ = 229217100. Its totient is φ = 61124448.

The previous prime is 126615043. The next prime is 126615053. The reversal of 126615044 is 440516621.

It can be written as a sum of positive squares in 2 ways, for example, as 48469444 + 78145600 = 6962^2 + 8840^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 126614998 and 126615016.

It is not an unprimeable number, because it can be changed into a prime (126615043) 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, 545639 + ... + 545870.

It is an arithmetic number, because the mean of its divisors is an integer number (19101425).

Almost surely, 2^126615044 is an apocalyptic number.

It is an amenable number.

126615044 is a deficient number, since it is larger than the sum of its proper divisors (102602056).

126615044 is a wasteful number, since it uses less digits than its factorization.

126615044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091542 (or 1091540 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 126615044 is about 11252.3350465581. The cubic root of 126615044 is about 502.1441838077.

The spelling of 126615044 in words is "one hundred twenty-six million, six hundred fifteen thousand, forty-four".