126543992 has 16 divisors (see below), whose sum is σ = 238149600. Its totient is φ = 63037440.

The previous prime is 126543983. The next prime is 126543997. The reversal of 126543992 is 299345621.

It is a super-2 number, since 2×126543992² = 32026763822592128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126543997) 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, 27017 + ... + 31352.

It is an arithmetic number, because the mean of its divisors is an integer number (14884350).

Almost surely, 2^126543992 is an apocalyptic number.

It is an amenable number.

126543992 is a deficient number, since it is larger than the sum of its proper divisors (111605608).

126543992 is a wasteful number, since it uses less digits than its factorization.

126543992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58646 (or 58642 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 126543992 is about 11249.1773921474. The cubic root of 126543992 is about 502.0502375611.

The spelling of 126543992 in words is "one hundred twenty-six million, five hundred forty-three thousand, nine hundred ninety-two".