83139154 has 16 divisors (see below), whose sum is σ = 144533376. Its totient is φ = 35128800.

The previous prime is 83139151. The next prime is 83139187. The reversal of 83139154 is 45193138.

It is not an unprimeable number, because it can be changed into a prime (83139151) 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 7 ways as a sum of consecutive naturals, for example, 40827 + ... + 42814.

It is an arithmetic number, because the mean of its divisors is an integer number (9033336).

Almost surely, 2^83139154 is an apocalyptic number.

83139154 is a deficient number, since it is larger than the sum of its proper divisors (61394222).

83139154 is a wasteful number, since it uses less digits than its factorization.

83139154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83721.

The product of its digits is 12960, while the sum is 34.

The square root of 83139154 is about 9118.0674487525. The cubic root of 83139154 is about 436.4507059709.

The spelling of 83139154 in words is "eighty-three million, one hundred thirty-nine thousand, one hundred fifty-four".