180428954 has 4 divisors (see below), whose sum is σ = 270643434. Its totient is φ = 90214476.

The previous prime is 180428947. The next prime is 180428993. The reversal of 180428954 is 459824081.

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

It can be written as a sum of positive squares in only one way, i.e., 125328025 + 55100929 = 11195^2 + 7423^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45107237 + ... + 45107240.

Almost surely, 2^180428954 is an apocalyptic number.

180428954 is a deficient number, since it is larger than the sum of its proper divisors (90214480).

180428954 is an equidigital number, since it uses as much as digits as its factorization.

180428954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90214479.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 180428954 is about 13432.3845239779. The cubic root of 180428954 is about 565.0697739293.

The spelling of 180428954 in words is "one hundred eighty million, four hundred twenty-eight thousand, nine hundred fifty-four".