73921149 has 12 divisors (see below), whose sum is σ = 111417696. Its totient is φ = 47137992.

The previous prime is 73921139. The next prime is 73921157. The reversal of 73921149 is 94112937.

It is not a de Polignac number, because 73921149 - 2⁸ = 73920893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73921129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178347 + ... + 178760.

It is an arithmetic number, because the mean of its divisors is an integer number (9284808).

Almost surely, 2^73921149 is an apocalyptic number.

It is an amenable number.

73921149 is a deficient number, since it is larger than the sum of its proper divisors (37496547).

73921149 is a wasteful number, since it uses less digits than its factorization.

73921149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357136 (or 357133 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 73921149 is about 8597.7409242196. The cubic root of 73921149 is about 419.6844739039.

The spelling of 73921149 in words is "seventy-three million, nine hundred twenty-one thousand, one hundred forty-nine".