103978172 has 6 divisors (see below), whose sum is σ = 181961808. Its totient is φ = 51989084.

The previous prime is 103978129. The next prime is 103978181. The reversal of 103978172 is 271879301.

It is a super-3 number, since 3×103978172³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12997268 + ... + 12997275.

It is an arithmetic number, because the mean of its divisors is an integer number (30326968).

Almost surely, 2^103978172 is an apocalyptic number.

It is an amenable number.

103978172 is a deficient number, since it is larger than the sum of its proper divisors (77983636).

103978172 is a wasteful number, since it uses less digits than its factorization.

103978172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25994547 (or 25994545 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 103978172 is about 10196.9687652753. The cubic root of 103978172 is about 470.2340346437.

The spelling of 103978172 in words is "one hundred three million, nine hundred seventy-eight thousand, one hundred seventy-two".