83121152 has 22 divisors (see below), whose sum is σ = 166163178. Its totient is φ = 41560064.

The previous prime is 83121139. The next prime is 83121167. The reversal of 83121152 is 25112138.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 62473216 + 20647936 = 7904^2 + 4544^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39563 + ... + 41610.

Almost surely, 2^83121152 is an apocalyptic number.

It is an amenable number.

83121152 is a deficient number, since it is larger than the sum of its proper divisors (83042026).

83121152 is an equidigital number, since it uses as much as digits as its factorization.

83121152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81193 (or 81175 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 83121152 is about 9117.0802343733. The cubic root of 83121152 is about 436.4192023516.

The spelling of 83121152 in words is "eighty-three million, one hundred twenty-one thousand, one hundred fifty-two".