109377831 has 8 divisors (see below), whose sum is σ = 145943424. Its totient is φ = 72865400.

The previous prime is 109377823. The next prime is 109377859. The reversal of 109377831 is 138773901.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109377831 - 2³ = 109377823 is a prime.

It is a super-2 number, since 2×109377831² = 23927019828529122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109377831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109370831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8211 + ... + 16916.

It is an arithmetic number, because the mean of its divisors is an integer number (18242928).

Almost surely, 2^109377831 is an apocalyptic number.

109377831 is a deficient number, since it is larger than the sum of its proper divisors (36565593).

109377831 is a wasteful number, since it uses less digits than its factorization.

109377831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26581.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 109377831 is about 10458.3856784879. The cubic root of 109377831 is about 478.2369217590.

The spelling of 109377831 in words is "one hundred nine million, three hundred seventy-seven thousand, eight hundred thirty-one".