126610651 has 2 divisors, whose sum is σ = 126610652. Its totient is φ = 126610650.

The previous prime is 126610643. The next prime is 126610667. The reversal of 126610651 is 156016621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126610651 - 2³ = 126610643 is a prime.

It is not a weakly prime, because it can be changed into another prime (126610681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63305325 + 63305326.

It is an arithmetic number, because the mean of its divisors is an integer number (63305326).

Almost surely, 2^126610651 is an apocalyptic number.

126610651 is a deficient number, since it is larger than the sum of its proper divisors (1).

126610651 is an equidigital number, since it uses as much as digits as its factorization.

126610651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 126610651 is about 11252.1398409369. The cubic root of 126610651 is about 502.1383763227.

The spelling of 126610651 in words is "one hundred twenty-six million, six hundred ten thousand, six hundred fifty-one".