83144964 has 36 divisors (see below), whose sum is σ = 225680784. Its totient is φ = 23755536.

The previous prime is 83144953. The next prime is 83144981. The reversal of 83144964 is 46944138.

It is a happy number.

It is a super-2 number, since 2×83144964² = 13826170077122592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70114 + ... + 71289.

Almost surely, 2^83144964 is an apocalyptic number.

83144964 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

83144964 is an abundant number, since it is smaller than the sum of its proper divisors (142535820).

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

83144964 is a wasteful number, since it uses less digits than its factorization.

83144964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141424 (or 141415 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 83144964 is about 9118.3860414001. The cubic root of 83144964 is about 436.4608725387.

The spelling of 83144964 in words is "eighty-three million, one hundred forty-four thousand, nine hundred sixty-four".