109781612 has 12 divisors (see below), whose sum is σ = 193029816. Its totient is φ = 54630240.

The previous prime is 109781611. The next prime is 109781653. The reversal of 109781612 is 216187901.

It is not an unprimeable number, because it can be changed into a prime (109781611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64193 + ... + 65880.

It is an arithmetic number, because the mean of its divisors is an integer number (16085818).

Almost surely, 2^109781612 is an apocalyptic number.

It is an amenable number.

109781612 is a deficient number, since it is larger than the sum of its proper divisors (83248204).

109781612 is a wasteful number, since it uses less digits than its factorization.

109781612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130288 (or 130286 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 109781612 is about 10477.6720696918. The cubic root of 109781612 is about 478.8246881773.

The spelling of 109781612 in words is "one hundred nine million, seven hundred eighty-one thousand, six hundred twelve".