31413423 has 16 divisors (see below), whose sum is σ = 43946496. Its totient is φ = 19921440.

The previous prime is 31413401. The next prime is 31413427. The reversal of 31413423 is 32431413.

It is not a de Polignac number, because 31413423 - 2¹⁴ = 31397039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31413423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31413427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12438 + ... + 14748.

It is an arithmetic number, because the mean of its divisors is an integer number (2746656).

Almost surely, 2^31413423 is an apocalyptic number.

31413423 is a deficient number, since it is larger than the sum of its proper divisors (12533073).

31413423 is a wasteful number, since it uses less digits than its factorization.

31413423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534.

The product of its digits is 864, while the sum is 21.

The square root of 31413423 is about 5604.7678810099. The cubic root of 31413423 is about 315.5283749971.

Adding to 31413423 its reverse (32431413), we get a palindrome (63844836).

The spelling of 31413423 in words is "thirty-one million, four hundred thirteen thousand, four hundred twenty-three".