74121573 has 16 divisors (see below), whose sum is σ = 100638720. Its totient is φ = 48517104.

The previous prime is 74121569. The next prime is 74121587. The reversal of 74121573 is 37512147.

It is not a de Polignac number, because 74121573 - 2² = 74121569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74121573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74121533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43740 + ... + 45402.

It is an arithmetic number, because the mean of its divisors is an integer number (6289920).

Almost surely, 2^74121573 is an apocalyptic number.

It is an amenable number.

74121573 is a deficient number, since it is larger than the sum of its proper divisors (26517147).

74121573 is a wasteful number, since it uses less digits than its factorization.

74121573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928.

The product of its digits is 5880, while the sum is 30.

The square root of 74121573 is about 8609.3886542541. The cubic root of 74121573 is about 420.0634314627.

The spelling of 74121573 in words is "seventy-four million, one hundred twenty-one thousand, five hundred seventy-three".