126945956 has 6 divisors (see below), whose sum is σ = 222155430. Its totient is φ = 63472976.

The previous prime is 126945913. The next prime is 126945967. The reversal of 126945956 is 659549621.

It can be written as a sum of positive squares in only one way, i.e., 89000356 + 37945600 = 9434^2 + 6160^2 .

It is a super-2 number, since 2×126945956² = 32230551489507872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126945956.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15868241 + ... + 15868248.

It is an arithmetic number, because the mean of its divisors is an integer number (37025905).

Almost surely, 2^126945956 is an apocalyptic number.

It is an amenable number.

126945956 is a deficient number, since it is larger than the sum of its proper divisors (95209474).

126945956 is a wasteful number, since it uses less digits than its factorization.

126945956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31736493 (or 31736491 counting only the distinct ones).

The product of its digits is 583200, while the sum is 47.

The square root of 126945956 is about 11267.0295996771. The cubic root of 126945956 is about 502.5812592696.

The spelling of 126945956 in words is "one hundred twenty-six million, nine hundred forty-five thousand, nine hundred fifty-six".