180490953 has 4 divisors (see below), whose sum is σ = 240654608. Its totient is φ = 120327300.

The previous prime is 180490931. The next prime is 180490957. The reversal of 180490953 is 359094081.

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 not a de Polignac number, because 180490953 - 2⁹ = 180490441 is a prime.

It is a super-2 number, since 2×180490953² = 65153968229696418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180490957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30081823 + ... + 30081828.

It is an arithmetic number, because the mean of its divisors is an integer number (60163652).

Almost surely, 2^180490953 is an apocalyptic number.

It is an amenable number.

180490953 is a deficient number, since it is larger than the sum of its proper divisors (60163655).

180490953 is an equidigital number, since it uses as much as digits as its factorization.

180490953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60163654.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 180490953 is about 13434.6921438491. The cubic root of 180490953 is about 565.1344896122.

The spelling of 180490953 in words is "one hundred eighty million, four hundred ninety thousand, nine hundred fifty-three".