126391264 has 24 divisors (see below), whose sum is σ = 249774840. Its totient is φ = 62956416.

The previous prime is 126391253. The next prime is 126391267. The reversal of 126391264 is 462193621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126391267) 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, 1267 + ... + 15949.

It is an arithmetic number, because the mean of its divisors is an integer number (10407285).

Almost surely, 2^126391264 is an apocalyptic number.

It is an amenable number.

126391264 is a deficient number, since it is larger than the sum of its proper divisors (123383576).

126391264 is a wasteful number, since it uses less digits than its factorization.

126391264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14962 (or 14954 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 126391264 is about 11242.3869351664. The cubic root of 126391264 is about 501.8481787202.

The spelling of 126391264 in words is "one hundred twenty-six million, three hundred ninety-one thousand, two hundred sixty-four".