126242992 has 20 divisors (see below), whose sum is σ = 257469880. Its totient is φ = 59799168.

The previous prime is 126242983. The next prime is 126243023. The reversal of 126242992 is 299242621.

It is a super-2 number, since 2×126242992² = 31874586058224128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207333 + ... + 207940.

It is an arithmetic number, because the mean of its divisors is an integer number (12873494).

Almost surely, 2^126242992 is an apocalyptic number.

It is an amenable number.

126242992 is an abundant number, since it is smaller than the sum of its proper divisors (131226888).

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

126242992 is a wasteful number, since it uses less digits than its factorization.

126242992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415300 (or 415294 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 126242992 is about 11235.7906708874. The cubic root of 126242992 is about 501.6518593781.

The spelling of 126242992 in words is "one hundred twenty-six million, two hundred forty-two thousand, nine hundred ninety-two".