126987875 has 32 divisors (see below), whose sum is σ = 191797632. Its totient is φ = 81945600.

The previous prime is 126987871. The next prime is 126987877. The reversal of 126987875 is 578789621.

It is not a de Polignac number, because 126987875 - 2² = 126987871 is a prime.

It is a super-2 number, since 2×126987875² = 32251840794031250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126987871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10607 + ... + 19143.

It is an arithmetic number, because the mean of its divisors is an integer number (5993676).

Almost surely, 2^126987875 is an apocalyptic number.

126987875 is a deficient number, since it is larger than the sum of its proper divisors (64809757).

126987875 is an equidigital number, since it uses as much as digits as its factorization.

126987875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576 (or 8566 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 53.

The square root of 126987875 is about 11268.8896968601. The cubic root of 126987875 is about 502.6365725330.

The spelling of 126987875 in words is "one hundred twenty-six million, nine hundred eighty-seven thousand, eight hundred seventy-five".