180742829 has 2 divisors, whose sum is σ = 180742830. Its totient is φ = 180742828.

The previous prime is 180742813. The next prime is 180742831. The reversal of 180742829 is 928247081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158634025 + 22108804 = 12595^2 + 4702^2 .

It is a cyclic number.

It is not a de Polignac number, because 180742829 - 2⁴ = 180742813 is a prime.

Together with 180742831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180742229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90371414 + 90371415.

It is an arithmetic number, because the mean of its divisors is an integer number (90371415).

Almost surely, 2^180742829 is an apocalyptic number.

It is an amenable number.

180742829 is a deficient number, since it is larger than the sum of its proper divisors (1).

180742829 is an equidigital number, since it uses as much as digits as its factorization.

180742829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 180742829 is about 13444.0629647440. The cubic root of 180742829 is about 565.3972500623.

The spelling of 180742829 in words is "one hundred eighty million, seven hundred forty-two thousand, eight hundred twenty-nine".