1109194631 has 16 divisors (see below), whose sum is σ = 1210788000. Its totient is φ = 1012128768.

The previous prime is 1109194627. The next prime is 1109194637. The reversal of 1109194631 is 1364919011.

It is a cyclic number.

It is not a de Polignac number, because 1109194631 - 2² = 1109194627 is a prime.

It is a super-2 number, since 2×1109194631² = 2460625458878452322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1109194591 and 1109194600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109194637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65645 + ... + 80793.

It is an arithmetic number, because the mean of its divisors is an integer number (75674250).

Almost surely, 2^1109194631 is an apocalyptic number.

1109194631 is a deficient number, since it is larger than the sum of its proper divisors (101593369).

1109194631 is a wasteful number, since it uses less digits than its factorization.

1109194631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15298.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 1109194631 is about 33304.5737249405. The cubic root of 1109194631 is about 1035.1483310167.

The spelling of 1109194631 in words is "one billion, one hundred nine million, one hundred ninety-four thousand, six hundred thirty-one".