180679949 has 4 divisors (see below), whose sum is σ = 190189440. Its totient is φ = 171170460.

The previous prime is 180679921. The next prime is 180679963. The reversal of 180679949 is 949976081.

It is a happy number.

180679949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 180679949 - 2¹² = 180675853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 180679949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180679549) 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, 4754717 + ... + 4754754.

It is an arithmetic number, because the mean of its divisors is an integer number (47547360).

Almost surely, 2^180679949 is an apocalyptic number.

180679949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

180679949 is a deficient number, since it is larger than the sum of its proper divisors (9509491).

180679949 is an equidigital number, since it uses as much as digits as its factorization.

180679949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9509490.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 180679949 is about 13441.7241825593. The cubic root of 180679949 is about 565.3316756715.

The spelling of 180679949 in words is "one hundred eighty million, six hundred seventy-nine thousand, nine hundred forty-nine".