180697013 has 4 divisors (see below), whose sum is σ = 206510880. Its totient is φ = 154883148.

The previous prime is 180697009. The next prime is 180697021. The reversal of 180697013 is 310796081.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310796081 = 53 ⋅5864077.

It is not a de Polignac number, because 180697013 - 2² = 180697009 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 (180697513) 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, 12906923 + ... + 12906936.

It is an arithmetic number, because the mean of its divisors is an integer number (51627720).

Almost surely, 2^180697013 is an apocalyptic number.

It is an amenable number.

180697013 is a deficient number, since it is larger than the sum of its proper divisors (25813867).

180697013 is an equidigital number, since it uses as much as digits as its factorization.

180697013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25813866.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 180697013 is about 13442.3589075727. The cubic root of 180697013 is about 565.3494723632.

The spelling of 180697013 in words is "one hundred eighty million, six hundred ninety-seven thousand, thirteen".