126513056 has 24 divisors (see below), whose sum is σ = 250336800. Its totient is φ = 62935488.

The previous prime is 126513053. The next prime is 126513071. The reversal of 126513056 is 650315621.

It is not an unprimeable number, because it can be changed into a prime (126513053) 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, 3566 + ... + 16301.

It is an arithmetic number, because the mean of its divisors is an integer number (10430700).

Almost surely, 2^126513056 is an apocalyptic number.

126513056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126513056 is a deficient number, since it is larger than the sum of its proper divisors (123823744).

126513056 is a wasteful number, since it uses less digits than its factorization.

126513056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20076 (or 20068 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 126513056 is about 11247.8022742223. The cubic root of 126513056 is about 502.0093224302.

Adding to 126513056 its reverse (650315621), we get a palindrome (776828677).

The spelling of 126513056 in words is "one hundred twenty-six million, five hundred thirteen thousand, fifty-six".