74274169 has 2 divisors, whose sum is σ = 74274170. Its totient is φ = 74274168.

The previous prime is 74274121. The next prime is 74274181. The reversal of 74274169 is 96147247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44156025 + 30118144 = 6645^2 + 5488^2 .

It is a cyclic number.

It is not a de Polignac number, because 74274169 - 2¹³ = 74265977 is a prime.

It is a super-2 number, since 2×74274169² = 11033304361281122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74274469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37137084 + 37137085.

It is an arithmetic number, because the mean of its divisors is an integer number (37137085).

Almost surely, 2^74274169 is an apocalyptic number.

It is an amenable number.

74274169 is a deficient number, since it is larger than the sum of its proper divisors (1).

74274169 is an equidigital number, since it uses as much as digits as its factorization.

74274169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 74274169 is about 8618.2462833224. The cubic root of 74274169 is about 420.3514990204.

The spelling of 74274169 in words is "seventy-four million, two hundred seventy-four thousand, one hundred sixty-nine".