126513642 has 16 divisors (see below), whose sum is σ = 253143360. Its totient is φ = 42151872.

The previous prime is 126513617. The next prime is 126513713. The reversal of 126513642 is 246315621.

It is a super-2 number, since 2×126513642² = 32011403224208328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16738 + ... + 23090.

It is an arithmetic number, because the mean of its divisors is an integer number (15821460).

Almost surely, 2^126513642 is an apocalyptic number.

126513642 is an abundant number, since it is smaller than the sum of its proper divisors (126629718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126513642 is a wasteful number, since it uses less digits than its factorization.

126513642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9677.

The product of its digits is 8640, while the sum is 30.

The square root of 126513642 is about 11247.8283237254. The cubic root of 126513642 is about 502.0100975202.

The spelling of 126513642 in words is "one hundred twenty-six million, five hundred thirteen thousand, six hundred forty-two".