172402103 has 2 divisors, whose sum is σ = 172402104. Its totient is φ = 172402102.

The previous prime is 172402099. The next prime is 172402127. The reversal of 172402103 is 301204271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172402103 - 2² = 172402099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172402603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86201051 + 86201052.

It is an arithmetic number, because the mean of its divisors is an integer number (86201052).

Almost surely, 2^172402103 is an apocalyptic number.

172402103 is a deficient number, since it is larger than the sum of its proper divisors (1).

172402103 is an equidigital number, since it uses as much as digits as its factorization.

172402103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 172402103 is about 13130.1981325493. The cubic root of 172402103 is about 556.5628142804.

Adding to 172402103 its reverse (301204271), we get a palindrome (473606374).

The spelling of 172402103 in words is "one hundred seventy-two million, four hundred two thousand, one hundred three".