74144513 has 8 divisors (see below), whose sum is σ = 76315008. Its totient is φ = 71994384.

The previous prime is 74144501. The next prime is 74144527. The reversal of 74144513 is 31544147.

It is a happy number.

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

It is not a de Polignac number, because 74144513 - 2⁶ = 74144449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74144563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2456 + ... + 12422.

It is an arithmetic number, because the mean of its divisors is an integer number (9539376).

Almost surely, 2^74144513 is an apocalyptic number.

It is an amenable number.

74144513 is a deficient number, since it is larger than the sum of its proper divisors (2170495).

74144513 is a wasteful number, since it uses less digits than its factorization.

74144513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183.

The product of its digits is 6720, while the sum is 29.

The square root of 74144513 is about 8610.7208176784. The cubic root of 74144513 is about 420.1067623527.

It can be divided in two parts, 741 and 44513, that added together give a palindrome (45254).

The spelling of 74144513 in words is "seventy-four million, one hundred forty-four thousand, five hundred thirteen".