31530114 has 64 divisors (see below), whose sum is σ = 87367680. Its totient is φ = 8188560.

The previous prime is 31530097. The next prime is 31530143. The reversal of 31530114 is 41103513.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367 + ... + 7949.

It is an arithmetic number, because the mean of its divisors is an integer number (1365120).

Almost surely, 2^31530114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31530114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43683840).

31530114 is an abundant number, since it is smaller than the sum of its proper divisors (55837566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31530114 is a wasteful number, since it uses less digits than its factorization.

31530114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612 (or 7606 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 31530114 is about 5615.1682076319. The cubic root of 31530114 is about 315.9185884919.

Adding to 31530114 its reverse (41103513), we get a palindrome (72633627).

The spelling of 31530114 in words is "thirty-one million, five hundred thirty thousand, one hundred fourteen".