31484142 has 12 divisors (see below), whose sum is σ = 68215680. Its totient is φ = 10494708.

The previous prime is 31484129. The next prime is 31484143. The reversal of 31484142 is 24148413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31484143) 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 5 ways as a sum of consecutive naturals, for example, 874542 + ... + 874577.

It is an arithmetic number, because the mean of its divisors is an integer number (5684640).

Almost surely, 2^31484142 is an apocalyptic number.

31484142 is an abundant number, since it is smaller than the sum of its proper divisors (36731538).

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

31484142 is a wasteful number, since it uses less digits than its factorization.

31484142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749127 (or 1749124 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 31484142 is about 5611.0731593876. The cubic root of 31484142 is about 315.7649737221.

It can be divided in two parts, 31484 and 142, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 31484142 in words is "thirty-one million, four hundred eighty-four thousand, one hundred forty-two".