109367172 has 60 divisors (see below), whose sum is σ = 292916316. Its totient is φ = 35562240.

The previous prime is 109367147. The next prime is 109367183. The reversal of 109367172 is 271763901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12068676 + 97298496 = 3474^2 + 9864^2 .

It is a super-2 number, since 2×109367172² = 23922356622555168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9168 + ... + 17400.

Almost surely, 2^109367172 is an apocalyptic number.

109367172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109367172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146458158).

109367172 is an abundant number, since it is smaller than the sum of its proper divisors (183549144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109367172 is a wasteful number, since it uses less digits than its factorization.

109367172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8290 (or 8279 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 109367172 is about 10457.8760749973. The cubic root of 109367172 is about 478.2213863350.

It can be divided in two parts, 1093 and 67172, that added together give a triangular number (68265 = T₃₆₉).

The spelling of 109367172 in words is "one hundred nine million, three hundred sixty-seven thousand, one hundred seventy-two".