1008518961 has 4 divisors (see below), whose sum is σ = 1344691952. Its totient is φ = 672345972.

The previous prime is 1008518957. The next prime is 1008518963. The reversal of 1008518961 is 1698158001.

1008518961 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 not a de Polignac number, because 1008518961 - 2² = 1008518957 is a prime.

It is a super-2 number, since 2×1008518961² = 2034220989393039042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1008518963) 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, 168086491 + ... + 168086496.

It is an arithmetic number, because the mean of its divisors is an integer number (336172988).

Almost surely, 2^1008518961 is an apocalyptic number.

It is an amenable number.

1008518961 is a deficient number, since it is larger than the sum of its proper divisors (336172991).

1008518961 is an equidigital number, since it uses as much as digits as its factorization.

1008518961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336172990.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 1008518961 is about 31757.1875486479. The cubic root of 1008518961 is about 1002.8316279815.

The spelling of 1008518961 in words is "one billion, eight million, five hundred eighteen thousand, nine hundred sixty-one".