31144202 has 16 divisors (see below), whose sum is σ = 48708000. Its totient is φ = 14916720.

The previous prime is 31144199. The next prime is 31144207. The reversal of 31144202 is 20244113.

It is a super-2 number, since 2×31144202² = 1939922636433608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31144207) by changing a digit.

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, 5549 + ... + 9647.

It is an arithmetic number, because the mean of its divisors is an integer number (3044250).

Almost surely, 2^31144202 is an apocalyptic number.

31144202 is a deficient number, since it is larger than the sum of its proper divisors (17563798).

31144202 is a wasteful number, since it uses less digits than its factorization.

31144202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4261.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 31144202 is about 5580.6990601537. The cubic root of 31144202 is about 314.6244015718.

Adding to 31144202 its reverse (20244113), we get a palindrome (51388315).

The spelling of 31144202 in words is "thirty-one million, one hundred forty-four thousand, two hundred two".