31344361 has 4 divisors (see below), whose sum is σ = 31570000. Its totient is φ = 31118724.

The previous prime is 31344349. The next prime is 31344373. The reversal of 31344361 is 16344313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (31344349) and next prime (31344373).

It is a cyclic number.

It is not a de Polignac number, because 31344361 - 2⁵ = 31344329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31341361) 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, 112611 + ... + 112888.

It is an arithmetic number, because the mean of its divisors is an integer number (7892500).

Almost surely, 2^31344361 is an apocalyptic number.

It is an amenable number.

31344361 is a deficient number, since it is larger than the sum of its proper divisors (225639).

31344361 is a wasteful number, since it uses less digits than its factorization.

31344361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225638.

The product of its digits is 2592, while the sum is 25.

The square root of 31344361 is about 5598.6034865848. The cubic root of 31344361 is about 315.2969770025.

Adding to 31344361 its reverse (16344313), we get a palindrome (47688674).

The spelling of 31344361 in words is "thirty-one million, three hundred forty-four thousand, three hundred sixty-one".