31134142 has 8 divisors (see below), whose sum is σ = 50293656. Its totient is φ = 14369592.

The previous prime is 31134133. The next prime is 31134143. The reversal of 31134142 is 24143113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134143) 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, 598708 + ... + 598759.

It is an arithmetic number, because the mean of its divisors is an integer number (6286707).

Almost surely, 2^31134142 is an apocalyptic number.

31134142 is a deficient number, since it is larger than the sum of its proper divisors (19159514).

31134142 is a wasteful number, since it uses less digits than its factorization.

31134142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197482.

The product of its digits is 288, while the sum is 19.

The square root of 31134142 is about 5579.7976665825. The cubic root of 31134142 is about 314.5905219395.

Adding to 31134142 its reverse (24143113), we get a palindrome (55277255).

It can be divided in two parts, 311 and 34142, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 31134142 in words is "thirty-one million, one hundred thirty-four thousand, one hundred forty-two".