126646461 has 6 divisors (see below), whose sum is σ = 182933790. Its totient is φ = 84430968.

The previous prime is 126646433. The next prime is 126646469. The reversal of 126646461 is 164646621.

126646461 is a `hidden beast` number, since 1 + 2 + 6 + 6 + 4 + 646 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 115154361 + 11492100 = 10731^2 + 3390^2 .

It is not a de Polignac number, because 126646461 - 2⁶ = 126646397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126646469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7035906 + ... + 7035923.

It is an arithmetic number, because the mean of its divisors is an integer number (30488965).

Almost surely, 2^126646461 is an apocalyptic number.

It is an amenable number.

126646461 is a deficient number, since it is larger than the sum of its proper divisors (56287329).

126646461 is a wasteful number, since it uses less digits than its factorization.

126646461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14071835 (or 14071832 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 126646461 is about 11253.7309813235. The cubic root of 126646461 is about 502.1857127305.

The spelling of 126646461 in words is "one hundred twenty-six million, six hundred forty-six thousand, four hundred sixty-one".