74355091 has 2 divisors, whose sum is σ = 74355092. Its totient is φ = 74355090.

The previous prime is 74355013. The next prime is 74355121. The reversal of 74355091 is 19055347.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74355091 - 2¹⁵ = 74322323 is a prime.

It is not a weakly prime, because it can be changed into another prime (74358091) 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, 37177545 + 37177546.

It is an arithmetic number, because the mean of its divisors is an integer number (37177546).

Almost surely, 2^74355091 is an apocalyptic number.

74355091 is a deficient number, since it is larger than the sum of its proper divisors (1).

74355091 is an equidigital number, since it uses as much as digits as its factorization.

74355091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 74355091 is about 8622.9398119203. The cubic root of 74355091 is about 420.5041018186.

The spelling of 74355091 in words is "seventy-four million, three hundred fifty-five thousand, ninety-one".