103742172 has 18 divisors (see below), whose sum is σ = 262237248. Its totient is φ = 34580712.

The previous prime is 103742137. The next prime is 103742189. The reversal of 103742172 is 271247301.

It is a happy number.

103742172 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

103742172 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1440828 + ... + 1440899.

It is an arithmetic number, because the mean of its divisors is an integer number (14568736).

Almost surely, 2^103742172 is an apocalyptic number.

103742172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103742172 is an abundant number, since it is smaller than the sum of its proper divisors (158495076).

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

103742172 is a wasteful number, since it uses less digits than its factorization.

103742172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881737 (or 2881732 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 103742172 is about 10185.3901250762. The cubic root of 103742172 is about 469.8780006271.

Adding to 103742172 its reverse (271247301), we get a palindrome (374989473).

The spelling of 103742172 in words is "one hundred three million, seven hundred forty-two thousand, one hundred seventy-two".