74521542 has 8 divisors (see below), whose sum is σ = 149043096. Its totient is φ = 24840512.

The previous prime is 74521453. The next prime is 74521549. The reversal of 74521542 is 24512547.

It is a sphenic number, since it is the product of 3 distinct primes.

74521542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74521549) 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 in 3 ways as a sum of consecutive naturals, for example, 6210123 + ... + 6210134.

It is an arithmetic number, because the mean of its divisors is an integer number (18630387).

Almost surely, 2^74521542 is an apocalyptic number.

74521542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74521542 is a wasteful number, since it uses less digits than its factorization.

74521542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12420262.

The product of its digits is 11200, while the sum is 30.

The square root of 74521542 is about 8632.5860551749. The cubic root of 74521542 is about 420.8176475501.

The spelling of 74521542 in words is "seventy-four million, five hundred twenty-one thousand, five hundred forty-two".