109902403 has 16 divisors (see below), whose sum is σ = 127249920. Its totient is φ = 94054176.

The previous prime is 109902343. The next prime is 109902407. The reversal of 109902403 is 304209901.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109902403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109902407) 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, 6876 + ... + 16342.

It is an arithmetic number, because the mean of its divisors is an integer number (7953120).

Almost surely, 2^109902403 is an apocalyptic number.

109902403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

109902403 is a deficient number, since it is larger than the sum of its proper divisors (17347517).

109902403 is a wasteful number, since it uses less digits than its factorization.

109902403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9546.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 109902403 is about 10483.4346947935. The cubic root of 109902403 is about 479.0002382601. Note that the first 3 decimals are identical.

The spelling of 109902403 in words is "one hundred nine million, nine hundred two thousand, four hundred three".