180742479 has 8 divisors (see below), whose sum is σ = 241118640. Its totient is φ = 120430656.

The previous prime is 180742477. The next prime is 180742489. The reversal of 180742479 is 974247081.

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 180742479 - 2¹ = 180742477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180742479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180742477) 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, 9094 + ... + 21075.

It is an arithmetic number, because the mean of its divisors is an integer number (30139830).

Almost surely, 2^180742479 is an apocalyptic number.

180742479 is a deficient number, since it is larger than the sum of its proper divisors (60376161).

180742479 is a wasteful number, since it uses less digits than its factorization.

180742479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32169.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 180742479 is about 13444.0499478394. The cubic root of 180742479 is about 565.3968851070.

The spelling of 180742479 in words is "one hundred eighty million, seven hundred forty-two thousand, four hundred seventy-nine".