31141999 has 8 divisors (see below), whose sum is σ = 36317600. Its totient is φ = 26692848.

The previous prime is 31141997. The next prime is 31142003. The reversal of 31141999 is 99914113.

It is not a de Polignac number, because 31141999 - 2¹ = 31141997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31141991) 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, 45054 + ... + 45739.

It is an arithmetic number, because the mean of its divisors is an integer number (4539700).

Almost surely, 2^31141999 is an apocalyptic number.

31141999 is a deficient number, since it is larger than the sum of its proper divisors (5175601).

31141999 is an frugal number, since it uses more digits than its factorization.

31141999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90814 (or 90800 counting only the distinct ones).

The product of its digits is 8748, while the sum is 37.

The square root of 31141999 is about 5580.5016799567. The cubic root of 31141999 is about 314.6169830278.

The spelling of 31141999 in words is "thirty-one million, one hundred forty-one thousand, nine hundred ninety-nine".