74085251 has 2 divisors, whose sum is σ = 74085252. Its totient is φ = 74085250.

The previous prime is 74085247. The next prime is 74085287. The reversal of 74085251 is 15258047.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74085251 - 2² = 74085247 is a prime.

It is not a weakly prime, because it can be changed into another prime (74085751) 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, 37042625 + 37042626.

It is an arithmetic number, because the mean of its divisors is an integer number (37042626).

Almost surely, 2^74085251 is an apocalyptic number.

74085251 is a deficient number, since it is larger than the sum of its proper divisors (1).

74085251 is an equidigital number, since it uses as much as digits as its factorization.

74085251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 74085251 is about 8607.2789544664. The cubic root of 74085251 is about 419.9948053023.

The spelling of 74085251 in words is "seventy-four million, eighty-five thousand, two hundred fifty-one".