83181274 has 16 divisors (see below), whose sum is σ = 138684960. Its totient is φ = 37095760.

The previous prime is 83181253. The next prime is 83181299. The reversal of 83181274 is 47218138.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 34504 + ... + 36835.

It is an arithmetic number, because the mean of its divisors is an integer number (8667810).

Almost surely, 2^83181274 is an apocalyptic number.

83181274 is a deficient number, since it is larger than the sum of its proper divisors (55503686).

83181274 is a wasteful number, since it uses less digits than its factorization.

83181274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71405.

The product of its digits is 10752, while the sum is 34.

The square root of 83181274 is about 9120.3768562489. The cubic root of 83181274 is about 436.5243984863.

The spelling of 83181274 in words is "eighty-three million, one hundred eighty-one thousand, two hundred seventy-four".