31454 has 4 divisors (see below), whose sum is σ = 47184. Its totient is φ = 15726.

The previous prime is 31397. The next prime is 31469. The reversal of 31454 is 45413.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 31454.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7862 + ... + 7865.

It is an arithmetic number, because the mean of its divisors is an integer number (11796).

2³¹⁴⁵⁴ is an apocalyptic number.

31454 is a deficient number, since it is larger than the sum of its proper divisors (15730).

31454 is a wasteful number, since it uses less digits than its factorization.

31454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15729.

The product of its digits is 240, while the sum is 17.

The square root of 31454 is about 177.3527558286. The cubic root of 31454 is about 31.5664173486.

Adding to 31454 its reverse (45413), we get a palindrome (76867).

The spelling of 31454 in words is "thirty-one thousand, four hundred fifty-four".