83531142 has 16 divisors (see below), whose sum is σ = 185624880. Its totient is φ = 27843696.

The previous prime is 83531131. The next prime is 83531159. The reversal of 83531142 is 24113538.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773383 + ... + 773490.

It is an arithmetic number, because the mean of its divisors is an integer number (11601555).

Almost surely, 2^83531142 is an apocalyptic number.

83531142 is an abundant number, since it is smaller than the sum of its proper divisors (102093738).

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

83531142 is a wasteful number, since it uses less digits than its factorization.

83531142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546884 (or 1546878 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 83531142 is about 9139.5372968220. The cubic root of 83531142 is about 437.1355628486.

The spelling of 83531142 in words is "eighty-three million, five hundred thirty-one thousand, one hundred forty-two".