180974147 has 4 divisors (see below), whose sum is σ = 181019016. Its totient is φ = 180929280.

The previous prime is 180974119. The next prime is 180974177. The reversal of 180974147 is 741479081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741479081 = 7 ⋅105925583.

It is a cyclic number.

It is not a de Polignac number, because 180974147 - 2⁶ = 180974083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180974177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15713 + ... + 24674.

It is an arithmetic number, because the mean of its divisors is an integer number (45254754).

Almost surely, 2^180974147 is an apocalyptic number.

180974147 is a deficient number, since it is larger than the sum of its proper divisors (44869).

180974147 is an equidigital number, since it uses as much as digits as its factorization.

180974147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44868.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 180974147 is about 13452.6631935836. The cubic root of 180974147 is about 565.6383491737.

The spelling of 180974147 in words is "one hundred eighty million, nine hundred seventy-four thousand, one hundred forty-seven".