109691601 has 16 divisors (see below), whose sum is σ = 152780160. Its totient is φ = 69914880.

The previous prime is 109691587. The next prime is 109691627. The reversal of 109691601 is 106196901.

It is not a de Polignac number, because 109691601 - 2¹⁰ = 109690577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109691801) 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, 2841 + ... + 15081.

It is an arithmetic number, because the mean of its divisors is an integer number (9548760).

Almost surely, 2^109691601 is an apocalyptic number.

It is an amenable number.

109691601 is a deficient number, since it is larger than the sum of its proper divisors (43088559).

109691601 is a wasteful number, since it uses less digits than its factorization.

109691601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12376.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 109691601 is about 10473.3758168033. The cubic root of 109691601 is about 478.6937880724.

The spelling of 109691601 in words is "one hundred nine million, six hundred ninety-one thousand, six hundred one".