180342319 has 4 divisors (see below), whose sum is σ = 189834040. Its totient is φ = 170850600.

The previous prime is 180342311. The next prime is 180342367. The reversal of 180342319 is 913243081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 180342319 - 2³ = 180342311 is a prime.

It is a super-2 number, since 2×180342319² = 65046704044595522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180342311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4745832 + ... + 4745869.

It is an arithmetic number, because the mean of its divisors is an integer number (47458510).

Almost surely, 2^180342319 is an apocalyptic number.

180342319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

180342319 is a deficient number, since it is larger than the sum of its proper divisors (9491721).

180342319 is an equidigital number, since it uses as much as digits as its factorization.

180342319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9491720.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 180342319 is about 13429.1592812060. The cubic root of 180342319 is about 564.9793179053.

The spelling of 180342319 in words is "one hundred eighty million, three hundred forty-two thousand, three hundred nineteen".