981481595 has 4 divisors (see below), whose sum is σ = 1177777920. Its totient is φ = 785185272.

The previous prime is 981481561. The next prime is 981481601. The reversal of 981481595 is 595184189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 595184189 = 12911 ⋅46099.

It is a cyclic number.

It is not a de Polignac number, because 981481595 - 2⁸ = 981481339 is a prime.

It is a super-2 number, since 2×981481595² = 1926612242647488050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98148155 + ... + 98148164.

It is an arithmetic number, because the mean of its divisors is an integer number (294444480).

Almost surely, 2^981481595 is an apocalyptic number.

981481595 is a deficient number, since it is larger than the sum of its proper divisors (196296325).

981481595 is a wasteful number, since it uses less digits than its factorization.

981481595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196296324.

The product of its digits is 518400, while the sum is 50.

The square root of 981481595 is about 31328.6066558984. The cubic root of 981481595 is about 993.7886979379.

The spelling of 981481595 in words is "nine hundred eighty-one million, four hundred eighty-one thousand, five hundred ninety-five".