31314671 has 4 divisors (see below), whose sum is σ = 31502352. Its totient is φ = 31126992.

The previous prime is 31314667. The next prime is 31314677. The reversal of 31314671 is 17641313.

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

It is a cyclic number.

It is not a de Polignac number, because 31314671 - 2² = 31314667 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 31314671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31314677) 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, 93590 + ... + 93923.

It is an arithmetic number, because the mean of its divisors is an integer number (7875588).

Almost surely, 2^31314671 is an apocalyptic number.

31314671 is a deficient number, since it is larger than the sum of its proper divisors (187681).

31314671 is a wasteful number, since it uses less digits than its factorization.

31314671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187680.

The product of its digits is 1512, while the sum is 26.

The square root of 31314671 is about 5595.9513042913. The cubic root of 31314671 is about 315.1973937048.

Adding to 31314671 its reverse (17641313), we get a palindrome (48955984).

The spelling of 31314671 in words is "thirty-one million, three hundred fourteen thousand, six hundred seventy-one".