31034143 has 4 divisors (see below), whose sum is σ = 35467600. Its totient is φ = 26600688.

The previous prime is 31034119. The next prime is 31034149. The reversal of 31034143 is 34143013.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31034143 - 2²¹ = 28936991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31034143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31034149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2216718 + ... + 2216731.

It is an arithmetic number, because the mean of its divisors is an integer number (8866900).

Almost surely, 2^31034143 is an apocalyptic number.

31034143 is a deficient number, since it is larger than the sum of its proper divisors (4433457).

31034143 is an equidigital number, since it uses as much as digits as its factorization.

31034143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433456.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 31034143 is about 5570.8296509586. The cubic root of 31034143 is about 314.2533521282.

Adding to 31034143 its reverse (34143013), we get a palindrome (65177156).

It can be divided in two parts, 310 and 34143, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 31034143 in words is "thirty-one million, thirty-four thousand, one hundred forty-three".