94640251 has 2 divisors, whose sum is σ = 94640252. Its totient is φ = 94640250.

The previous prime is 94640237. The next prime is 94640261. The reversal of 94640251 is 15204649.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 94640251 - 2²³ = 86251643 is a prime.

It is not a weakly prime, because it can be changed into another prime (94640201) 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, 47320125 + 47320126.

It is an arithmetic number, because the mean of its divisors is an integer number (47320126).

Almost surely, 2^94640251 is an apocalyptic number.

94640251 is a deficient number, since it is larger than the sum of its proper divisors (1).

94640251 is an equidigital number, since it uses as much as digits as its factorization.

94640251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 94640251 is about 9728.3221060983. The cubic root of 94640251 is about 455.7135701850.

The spelling of 94640251 in words is "ninety-four million, six hundred forty thousand, two hundred fifty-one".