31144102 has 16 divisors (see below), whose sum is σ = 53961552. Its totient is φ = 13323520.

The previous prime is 31144049. The next prime is 31144103. The reversal of 31144102 is 20144113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31144103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41263 + ... + 42010.

It is an arithmetic number, because the mean of its divisors is an integer number (3372597).

Almost surely, 2^31144102 is an apocalyptic number.

31144102 is a deficient number, since it is larger than the sum of its proper divisors (22817450).

31144102 is a wasteful number, since it uses less digits than its factorization.

31144102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83303.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 31144102 is about 5580.6901006954. The cubic root of 31144102 is about 314.6240648320.

Adding to 31144102 its reverse (20144113), we get a palindrome (51288215).

The spelling of 31144102 in words is "thirty-one million, one hundred forty-four thousand, one hundred two".