73144479 has 8 divisors (see below), whose sum is σ = 97587072. Its totient is φ = 48732440.

The previous prime is 73144447. The next prime is 73144481. The reversal of 73144479 is 97444137.

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

It is a cyclic number.

It is not a de Polignac number, because 73144479 - 2⁵ = 73144447 is a prime.

It is a super-2 number, since 2×73144479² = 10700229616362882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73144679) 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 7 ways as a sum of consecutive naturals, for example, 1299 + ... + 12164.

It is an arithmetic number, because the mean of its divisors is an integer number (12198384).

Almost surely, 2^73144479 is an apocalyptic number.

73144479 is a deficient number, since it is larger than the sum of its proper divisors (24442593).

73144479 is a wasteful number, since it uses less digits than its factorization.

73144479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15277.

The product of its digits is 84672, while the sum is 39.

The square root of 73144479 is about 8552.4545599494. The cubic root of 73144479 is about 418.2094579156.

The spelling of 73144479 in words is "seventy-three million, one hundred forty-four thousand, four hundred seventy-nine".