31314401 has 4 divisors (see below), whose sum is σ = 31389204. Its totient is φ = 31239600.

The previous prime is 31314397. The next prime is 31314407. The reversal of 31314401 is 10441313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10441313 = 113 ⋅92401.

It can be written as a sum of positive squares in 2 ways, for example, as 4946176 + 26368225 = 2224^2 + 5135^2 .

It is a cyclic number.

It is not a de Polignac number, because 31314401 - 2² = 31314397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31314401.

It is not an unprimeable number, because it can be changed into a prime (31314407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36770 + ... + 37611.

It is an arithmetic number, because the mean of its divisors is an integer number (7847301).

Almost surely, 2^31314401 is an apocalyptic number.

It is an amenable number.

31314401 is a deficient number, since it is larger than the sum of its proper divisors (74803).

31314401 is an equidigital number, since it uses as much as digits as its factorization.

31314401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74802.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 31314401 is about 5595.9271796549. The cubic root of 31314401 is about 315.1964878084.

Adding to 31314401 its reverse (10441313), we get a palindrome (41755714).

It can be divided in two parts, 31 and 314401, that added together give a cube (314432 = 68³).

The spelling of 31314401 in words is "thirty-one million, three hundred fourteen thousand, four hundred one".