109687071 has 16 divisors (see below), whose sum is σ = 159274080. Its totient is φ = 66739200.

The previous prime is 109687063. The next prime is 109687079. The reversal of 109687071 is 170786901.

It is an interprime number because it is at equal distance from previous prime (109687063) and next prime (109687079).

It is not a de Polignac number, because 109687071 - 2³ = 109687063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109687079) 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, 12330 + ... + 19271.

It is an arithmetic number, because the mean of its divisors is an integer number (9954630).

Almost surely, 2^109687071 is an apocalyptic number.

109687071 is a deficient number, since it is larger than the sum of its proper divisors (49587009).

109687071 is a wasteful number, since it uses less digits than its factorization.

109687071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31706.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 109687071 is about 10473.1595519213. The cubic root of 109687071 is about 478.6871983466.

The spelling of 109687071 in words is "one hundred nine million, six hundred eighty-seven thousand, seventy-one".