481897187 has 2 divisors, whose sum is σ = 481897188. Its totient is φ = 481897186.

The previous prime is 481897183. The next prime is 481897189. The reversal of 481897187 is 781798184.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 481897187 - 2² = 481897183 is a prime.

Together with 481897189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (481897183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240948593 + 240948594.

It is an arithmetic number, because the mean of its divisors is an integer number (240948594).

Almost surely, 2^481897187 is an apocalyptic number.

481897187 is a deficient number, since it is larger than the sum of its proper divisors (1).

481897187 is an equidigital number, since it uses as much as digits as its factorization.

481897187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 53.

The square root of 481897187 is about 21952.1567733105. The cubic root of 481897187 is about 784.0037326934.

The spelling of 481897187 in words is "four hundred eighty-one million, eight hundred ninety-seven thousand, one hundred eighty-seven".