74209049 has 2 divisors, whose sum is σ = 74209050. Its totient is φ = 74209048.

The previous prime is 74209027. The next prime is 74209061. The reversal of 74209049 is 94090247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 16752649 = 7580^2 + 4093^2 .

It is an emirp because it is prime and its reverse (94090247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74209049 - 2²⁴ = 57431833 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (74209349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37104524 + 37104525.

It is an arithmetic number, because the mean of its divisors is an integer number (37104525).

Almost surely, 2^74209049 is an apocalyptic number.

It is an amenable number.

74209049 is a deficient number, since it is larger than the sum of its proper divisors (1).

74209049 is an equidigital number, since it uses as much as digits as its factorization.

74209049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 74209049 is about 8614.4674240489. The cubic root of 74209049 is about 420.2286151442.

The spelling of 74209049 in words is "seventy-four million, two hundred nine thousand, forty-nine".