180023077 has 4 divisors (see below), whose sum is σ = 193871020. Its totient is φ = 166175136.

The previous prime is 180023057. The next prime is 180023089. The reversal of 180023077 is 770320081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 770320081 = 331 ⋅2327251.

It can be written as a sum of positive squares in 2 ways, for example, as 74632321 + 105390756 = 8639^2 + 10266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180023077 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 (180023027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6923952 + ... + 6923977.

It is an arithmetic number, because the mean of its divisors is an integer number (48467755).

Almost surely, 2^180023077 is an apocalyptic number.

It is an amenable number.

180023077 is a deficient number, since it is larger than the sum of its proper divisors (13847943).

180023077 is a wasteful number, since it uses less digits than its factorization.

180023077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13847942.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 180023077 is about 13417.2678664473. The cubic root of 180023077 is about 564.6457455069.

The spelling of 180023077 in words is "one hundred eighty million, twenty-three thousand, seventy-seven".