83643142 has 16 divisors (see below), whose sum is σ = 137028672. Its totient is φ = 37975720.

The previous prime is 83643137. The next prime is 83643151. The reversal of 83643142 is 24134638.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24513 + ... + 27715.

It is an arithmetic number, because the mean of its divisors is an integer number (8564292).

Almost surely, 2^83643142 is an apocalyptic number.

83643142 is a deficient number, since it is larger than the sum of its proper divisors (53385530).

83643142 is a wasteful number, since it uses less digits than its factorization.

83643142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403.

The product of its digits is 13824, while the sum is 31.

The square root of 83643142 is about 9145.6624691708. The cubic root of 83643142 is about 437.3308485683.

The spelling of 83643142 in words is "eighty-three million, six hundred forty-three thousand, one hundred forty-two".