126908961 has 16 divisors (see below), whose sum is σ = 188596800. Its totient is φ = 75437568.

The previous prime is 126908897. The next prime is 126908987. The reversal of 126908961 is 169809621.

It is not a de Polignac number, because 126908961 - 2⁶ = 126908897 is a prime.

It is a super-2 number, since 2×126908961² = 32211768764199042, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126901961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64516 + ... + 66453.

It is an arithmetic number, because the mean of its divisors is an integer number (11787300).

Almost surely, 2^126908961 is an apocalyptic number.

It is an amenable number.

126908961 is a deficient number, since it is larger than the sum of its proper divisors (61687839).

126908961 is a wasteful number, since it uses less digits than its factorization.

126908961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131008.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 126908961 is about 11265.3877429940. The cubic root of 126908961 is about 502.5324332424.

The spelling of 126908961 in words is "one hundred twenty-six million, nine hundred eight thousand, nine hundred sixty-one".