126897660 has 72 divisors (see below), whose sum is σ = 385899696. Its totient is φ = 33753600.

The previous prime is 126897643. The next prime is 126897671. The reversal of 126897660 is 66798621.

It is a super-2 number, since 2×126897660² = 32206032226951200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105060 + ... + 106260.

It is an arithmetic number, because the mean of its divisors is an integer number (5359718).

Almost surely, 2^126897660 is an apocalyptic number.

126897660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126897660 is an abundant number, since it is smaller than the sum of its proper divisors (259002036).

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

126897660 is a wasteful number, since it uses less digits than its factorization.

126897660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 126897660 is about 11264.8861512223. The cubic root of 126897660 is about 502.5175162826.

The spelling of 126897660 in words is "one hundred twenty-six million, eight hundred ninety-seven thousand, six hundred sixty".