1109947995 has 64 divisors (see below), whose sum is σ = 2165304960. Its totient is φ = 536080896.

The previous prime is 1109947973. The next prime is 1109948017. The reversal of 1109947995 is 5997499011.

It is an interprime number because it is at equal distance from previous prime (1109947973) and next prime (1109948017).

It is not a de Polignac number, because 1109947995 - 2⁶ = 1109947931 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87049 + ... + 98981.

It is an arithmetic number, because the mean of its divisors is an integer number (33832890).

Almost surely, 2^1109947995 is an apocalyptic number.

1109947995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1109947995 is a deficient number, since it is larger than the sum of its proper divisors (1055356965).

1109947995 is a wasteful number, since it uses less digits than its factorization.

1109947995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12013 (or 12007 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 54.

The square root of 1109947995 is about 33315.8820234434. The cubic root of 1109947995 is about 1035.3826352515.

The spelling of 1109947995 in words is "one billion, one hundred nine million, nine hundred forty-seven thousand, nine hundred ninety-five".