126670491 has 12 divisors (see below), whose sum is σ = 183287832. Its totient is φ = 84299616.

The previous prime is 126670487. The next prime is 126670507. The reversal of 126670491 is 194076621.

It is not a de Polignac number, because 126670491 - 2² = 126670487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126670421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6706 + ... + 17271.

It is an arithmetic number, because the mean of its divisors is an integer number (15273986).

Almost surely, 2^126670491 is an apocalyptic number.

126670491 is a deficient number, since it is larger than the sum of its proper divisors (56617341).

126670491 is a wasteful number, since it uses less digits than its factorization.

126670491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24570 (or 24567 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 126670491 is about 11254.7985766072. The cubic root of 126670491 is about 502.2174724271.

The spelling of 126670491 in words is "one hundred twenty-six million, six hundred seventy thousand, four hundred ninety-one".