31745103 has 16 divisors (see below), whose sum is σ = 48265056. Its totient is φ = 18385920.

The previous prime is 31745059. The next prime is 31745107. The reversal of 31745103 is 30154713.

It is not a de Polignac number, because 31745103 - 2²² = 27550799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31745107) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 23278 + ... + 24603.

It is an arithmetic number, because the mean of its divisors is an integer number (3016566).

Almost surely, 2^31745103 is an apocalyptic number.

31745103 is a deficient number, since it is larger than the sum of its proper divisors (16519953).

31745103 is a wasteful number, since it uses less digits than its factorization.

31745103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47914.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 31745103 is about 5634.2792795530. The cubic root of 31745103 is about 316.6349960324.

Adding to 31745103 its reverse (30154713), we get a palindrome (61899816).

The spelling of 31745103 in words is "thirty-one million, seven hundred forty-five thousand, one hundred three".