126891108 has 36 divisors (see below), whose sum is σ = 328215888. Its totient is φ = 41312880.

The previous prime is 126891103. The next prime is 126891119. The reversal of 126891108 is 801198621.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×126891108² = 32202706578935328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (126891103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39438 + ... + 42533.

It is an arithmetic number, because the mean of its divisors is an integer number (9117108).

Almost surely, 2^126891108 is an apocalyptic number.

126891108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

126891108 is an abundant number, since it is smaller than the sum of its proper divisors (201324780).

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

126891108 is a wasteful number, since it uses less digits than its factorization.

126891108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82024 (or 82019 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 126891108 is about 11264.5953322789. The cubic root of 126891108 is about 502.5088674458.

The spelling of 126891108 in words is "one hundred twenty-six million, eight hundred ninety-one thousand, one hundred eight".