126921260 has 48 divisors (see below), whose sum is σ = 271724544. Its totient is φ = 49791168.

The previous prime is 126921259. The next prime is 126921271. The reversal of 126921260 is 62129621.

It is a happy number.

It is a super-2 number, since 2×126921260² = 32218012479975200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271547 + ... + 272013.

It is an arithmetic number, because the mean of its divisors is an integer number (5660928).

Almost surely, 2^126921260 is an apocalyptic number.

126921260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126921260 is an abundant number, since it is smaller than the sum of its proper divisors (144803284).

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

126921260 is a wasteful number, since it uses less digits than its factorization.

126921260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 126921260 is about 11265.9336053431. The cubic root of 126921260 is about 502.5486665241.

The spelling of 126921260 in words is "one hundred twenty-six million, nine hundred twenty-one thousand, two hundred sixty".