180144797 has 4 divisors (see below), whose sum is σ = 205879776. Its totient is φ = 154409820.

The previous prime is 180144793. The next prime is 180144817. The reversal of 180144797 is 797441081.

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 a cyclic number.

It is not a de Polignac number, because 180144797 - 2² = 180144793 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 (180144791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12867479 + ... + 12867492.

It is an arithmetic number, because the mean of its divisors is an integer number (51469944).

Almost surely, 2^180144797 is an apocalyptic number.

It is an amenable number.

180144797 is a deficient number, since it is larger than the sum of its proper divisors (25734979).

180144797 is an equidigital number, since it uses as much as digits as its factorization.

180144797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25734978.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 180144797 is about 13421.8030457908. The cubic root of 180144797 is about 564.7729758545.

The spelling of 180144797 in words is "one hundred eighty million, one hundred forty-four thousand, seven hundred ninety-seven".