83517142 has 4 divisors (see below), whose sum is σ = 125275716. Its totient is φ = 41758570.

The previous prime is 83517127. The next prime is 83517149. The reversal of 83517142 is 24171538.

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

It is a super-2 number, since 2×83517142² = 13950226015696328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83517149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20879284 + ... + 20879287.

It is an arithmetic number, because the mean of its divisors is an integer number (31318929).

Almost surely, 2^83517142 is an apocalyptic number.

83517142 is a deficient number, since it is larger than the sum of its proper divisors (41758574).

83517142 is a wasteful number, since it uses less digits than its factorization.

83517142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41758573.

The product of its digits is 6720, while the sum is 31.

The square root of 83517142 is about 9138.7713616219. The cubic root of 83517142 is about 437.1111398623. Note that the first 4 decimals are identical.

The spelling of 83517142 in words is "eighty-three million, five hundred seventeen thousand, one hundred forty-two".