126492001 has 2 divisors, whose sum is σ = 126492002. Its totient is φ = 126492000.

The previous prime is 126491971. The next prime is 126492017. The reversal of 126492001 is 100294621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117158976 + 9333025 = 10824^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 126492001 - 2¹¹ = 126489953 is a prime.

It is not a weakly prime, because it can be changed into another prime (126492061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63246000 + 63246001.

It is an arithmetic number, because the mean of its divisors is an integer number (63246001).

Almost surely, 2^126492001 is an apocalyptic number.

It is an amenable number.

126492001 is a deficient number, since it is larger than the sum of its proper divisors (1).

126492001 is an equidigital number, since it uses as much as digits as its factorization.

126492001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 126492001 is about 11246.8662746562. The cubic root of 126492001 is about 501.9814718325.

The spelling of 126492001 in words is "one hundred twenty-six million, four hundred ninety-two thousand, one".