74966149 has 2 divisors, whose sum is σ = 74966150. Its totient is φ = 74966148.

The previous prime is 74966147. The next prime is 74966161. The reversal of 74966149 is 94166947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74943649 + 22500 = 8657^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 74966149 - 2¹ = 74966147 is a prime.

Together with 74966147, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 74966099 and 74966108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74966147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37483074 + 37483075.

It is an arithmetic number, because the mean of its divisors is an integer number (37483075).

Almost surely, 2^74966149 is an apocalyptic number.

It is an amenable number.

74966149 is a deficient number, since it is larger than the sum of its proper divisors (1).

74966149 is an equidigital number, since it uses as much as digits as its factorization.

74966149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 74966149 is about 8658.2994288717. The cubic root of 74966149 is about 421.6528763493.

The spelling of 74966149 in words is "seventy-four million, nine hundred sixty-six thousand, one hundred forty-nine".