31001914 has 16 divisors (see below), whose sum is σ = 49439808. Its totient is φ = 14529472.

The previous prime is 31001909. The next prime is 31001921. The reversal of 31001914 is 41910013.

It is a happy number.

It is a super-2 number, since 2×31001914² = 1922237343326792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31001891 and 31001900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7209 + ... + 10675.

It is an arithmetic number, because the mean of its divisors is an integer number (3089988).

Almost surely, 2^31001914 is an apocalyptic number.

31001914 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31001914 is a deficient number, since it is larger than the sum of its proper divisors (18437894).

31001914 is a wasteful number, since it uses less digits than its factorization.

31001914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 31001914 is about 5567.9362424511. The cubic root of 31001914 is about 314.1445302701.

Adding to 31001914 its reverse (41910013), we get a palindrome (72911927).

The spelling of 31001914 in words is "thirty-one million, one thousand, nine hundred fourteen".