109561412 has 12 divisors (see below), whose sum is σ = 191862636. Its totient is φ = 54743520.

The previous prime is 109561381. The next prime is 109561421. The reversal of 109561412 is 214165901.

It can be written as a sum of positive squares in 2 ways, for example, as 93045316 + 16516096 = 9646^2 + 4064^2 .

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, 2039 + ... + 14942.

It is an arithmetic number, because the mean of its divisors is an integer number (15988553).

Almost surely, 2^109561412 is an apocalyptic number.

It is an amenable number.

109561412 is a deficient number, since it is larger than the sum of its proper divisors (82301224).

109561412 is a wasteful number, since it uses less digits than its factorization.

109561412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18598 (or 18596 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 109561412 is about 10467.1587357793. The cubic root of 109561412 is about 478.5043316428.

The spelling of 109561412 in words is "one hundred nine million, five hundred sixty-one thousand, four hundred twelve".