74531413 has 4 divisors (see below), whose sum is σ = 81307008. Its totient is φ = 67755820.

The previous prime is 74531411. The next prime is 74531423. The reversal of 74531413 is 31413547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 74531413 - 2¹ = 74531411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74531411) 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 3 ways as a sum of consecutive naturals, for example, 3387781 + ... + 3387802.

It is an arithmetic number, because the mean of its divisors is an integer number (20326752).

Almost surely, 2^74531413 is an apocalyptic number.

It is an amenable number.

74531413 is a deficient number, since it is larger than the sum of its proper divisors (6775595).

74531413 is a wasteful number, since it uses less digits than its factorization.

74531413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775594.

The product of its digits is 5040, while the sum is 28.

The square root of 74531413 is about 8633.1577652676. The cubic root of 74531413 is about 420.8362269992.

The spelling of 74531413 in words is "seventy-four million, five hundred thirty-one thousand, four hundred thirteen".