74500169 has 2 divisors, whose sum is σ = 74500170. Its totient is φ = 74500168.

The previous prime is 74500147. The next prime is 74500183. The reversal of 74500169 is 96100547.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52998400 + 21501769 = 7280^2 + 4637^2 .

It is a cyclic number.

It is not a de Polignac number, because 74500169 - 2¹² = 74496073 is a prime.

It is a super-2 number, since 2×74500169² = 11100550362057122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (74500469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37250084 + 37250085.

It is an arithmetic number, because the mean of its divisors is an integer number (37250085).

Almost surely, 2^74500169 is an apocalyptic number.

It is an amenable number.

74500169 is a deficient number, since it is larger than the sum of its proper divisors (1).

74500169 is an equidigital number, since it uses as much as digits as its factorization.

74500169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 74500169 is about 8631.3480407176. The cubic root of 74500169 is about 420.7774131189. Note that the first 3 decimals are identical.

The spelling of 74500169 in words is "seventy-four million, five hundred thousand, one hundred sixty-nine".