74130691 has 2 divisors, whose sum is σ = 74130692. Its totient is φ = 74130690.

The previous prime is 74130671. The next prime is 74130701. The reversal of 74130691 is 19603147.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19603147) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74130691 - 2²⁵ = 40576259 is a prime.

It is not a weakly prime, because it can be changed into another prime (74130611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37065345 + 37065346.

It is an arithmetic number, because the mean of its divisors is an integer number (37065346).

Almost surely, 2^74130691 is an apocalyptic number.

74130691 is a deficient number, since it is larger than the sum of its proper divisors (1).

74130691 is an equidigital number, since it uses as much as digits as its factorization.

74130691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 74130691 is about 8609.9181761501. The cubic root of 74130691 is about 420.0806553341.

The spelling of 74130691 in words is "seventy-four million, one hundred thirty thousand, six hundred ninety-one".