110661813 has 6 divisors (see below), whose sum is σ = 159844854. Its totient is φ = 73774536.

The previous prime is 110661797. The next prime is 110661821. The reversal of 110661813 is 318166011.

It can be written as a sum of positive squares in only one way, i.e., 110628324 + 33489 = 10518^2 + 183^2 .

It is not a de Polignac number, because 110661813 - 2⁴ = 110661797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110661893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6147870 + ... + 6147887.

It is an arithmetic number, because the mean of its divisors is an integer number (26640809).

Almost surely, 2^110661813 is an apocalyptic number.

It is an amenable number.

110661813 is a deficient number, since it is larger than the sum of its proper divisors (49183041).

110661813 is a wasteful number, since it uses less digits than its factorization.

110661813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12295763 (or 12295760 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 110661813 is about 10519.5918647065. The cubic root of 110661813 is about 480.1009813584.

The spelling of 110661813 in words is "one hundred ten million, six hundred sixty-one thousand, eight hundred thirteen".