74599121 has 2 divisors, whose sum is σ = 74599122. Its totient is φ = 74599120.

The previous prime is 74599093. The next prime is 74599139. The reversal of 74599121 is 12199547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67650625 + 6948496 = 8225^2 + 2636^2 .

It is an emirp because it is prime and its reverse (12199547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74599121 - 2¹⁴ = 74582737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74599171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37299560 + 37299561.

It is an arithmetic number, because the mean of its divisors is an integer number (37299561).

Almost surely, 2^74599121 is an apocalyptic number.

It is an amenable number.

74599121 is a deficient number, since it is larger than the sum of its proper divisors (1).

74599121 is an equidigital number, since it uses as much as digits as its factorization.

74599121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 74599121 is about 8637.0782675625. The cubic root of 74599121 is about 420.9636245355.

The spelling of 74599121 in words is "seventy-four million, five hundred ninety-nine thousand, one hundred twenty-one".