126465901 has 2 divisors, whose sum is σ = 126465902. Its totient is φ = 126465900.

The previous prime is 126465869. The next prime is 126465943. The reversal of 126465901 is 109564621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126450025 + 15876 = 11245^2 + 126^2 .

It is a cyclic number.

It is not a de Polignac number, because 126465901 - 2⁵ = 126465869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126465991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63232950 + 63232951.

It is an arithmetic number, because the mean of its divisors is an integer number (63232951).

Almost surely, 2^126465901 is an apocalyptic number.

It is an amenable number.

126465901 is a deficient number, since it is larger than the sum of its proper divisors (1).

126465901 is an equidigital number, since it uses as much as digits as its factorization.

126465901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 126465901 is about 11245.7058915837. The cubic root of 126465901 is about 501.9469436474.

The spelling of 126465901 in words is "one hundred twenty-six million, four hundred sixty-five thousand, nine hundred one".