31141144 has 32 divisors (see below), whose sum is σ = 62888400. Its totient is φ = 14402560.

The previous prime is 31141141. The next prime is 31141147. The reversal of 31141144 is 44114113.

It is an interprime number because it is at equal distance from previous prime (31141141) and next prime (31141147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31141141) 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, 6084 + ... + 9964.

Almost surely, 2^31141144 is an apocalyptic number.

31141144 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31141144 is an abundant number, since it is smaller than the sum of its proper divisors (31747256).

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

31141144 is a wasteful number, since it uses less digits than its factorization.

31141144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963 (or 3959 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 31141144 is about 5580.4250734151. The cubic root of 31141144 is about 314.6141037438.

Adding to 31141144 its reverse (44114113), we get a palindrome (75255257).

The spelling of 31141144 in words is "thirty-one million, one hundred forty-one thousand, one hundred forty-four".