74745199 has 2 divisors, whose sum is σ = 74745200. Its totient is φ = 74745198.

The previous prime is 74745163. The next prime is 74745263. The reversal of 74745199 is 99154747.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74745199 - 2⁷ = 74745071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74745119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37372599 + 37372600.

It is an arithmetic number, because the mean of its divisors is an integer number (37372600).

Almost surely, 2^74745199 is an apocalyptic number.

74745199 is a deficient number, since it is larger than the sum of its proper divisors (1).

74745199 is an equidigital number, since it uses as much as digits as its factorization.

74745199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The square root of 74745199 is about 8645.5305794381. The cubic root of 74745199 is about 421.2382186094.

It can be divided in two parts, 747 and 45199, that multiplied together give a triangular number (33763653 = T₈₂₁₇).

The spelling of 74745199 in words is "seventy-four million, seven hundred forty-five thousand, one hundred ninety-nine".