172280103 has 16 divisors (see below), whose sum is σ = 237658080. Its totient is φ = 110923776.

The previous prime is 172280089. The next prime is 172280117. The reversal of 172280103 is 301082271.

It is an interprime number because it is at equal distance from previous prime (172280089) and next prime (172280117).

It is not a de Polignac number, because 172280103 - 2¹² = 172276007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172280123) 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, 9543 + ... + 20871.

It is an arithmetic number, because the mean of its divisors is an integer number (14853630).

Almost surely, 2^172280103 is an apocalyptic number.

172280103 is a deficient number, since it is larger than the sum of its proper divisors (65377977).

172280103 is a wasteful number, since it uses less digits than its factorization.

172280103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11506.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 172280103 is about 13125.5515312691. The cubic root of 172280103 is about 556.4314997836.

The spelling of 172280103 in words is "one hundred seventy-two million, two hundred eighty thousand, one hundred three".