31144106 has 12 divisors (see below), whose sum is σ = 54343458. Its totient is φ = 13347432.

The previous prime is 31144103. The next prime is 31144109. The reversal of 31144106 is 60144113.

It is an interprime number because it is at equal distance from previous prime (31144103) and next prime (31144109).

It can be written as a sum of positive squares in only one way, i.e., 29430625 + 1713481 = 5425^2 + 1309^2 .

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 5 ways as a sum of consecutive naturals, for example, 158801 + ... + 158996.

Almost surely, 2^31144106 is an apocalyptic number.

31144106 is a deficient number, since it is larger than the sum of its proper divisors (23199352).

31144106 is a wasteful number, since it uses less digits than its factorization.

31144106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317813 (or 317806 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 31144106 is about 5580.6904590740. The cubic root of 31144106 is about 314.6240783016.

Adding to 31144106 its reverse (60144113), we get a palindrome (91288219).

The spelling of 31144106 in words is "thirty-one million, one hundred forty-four thousand, one hundred six".