1231874082 has 80 divisors (see below), whose sum is σ = 2915209440. Its totient is φ = 387726912.

The previous prime is 1231874081. The next prime is 1231874099. The reversal of 1231874082 is 2804781321.

It is not an unprimeable number, because it can be changed into a prime (1231874081) 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 39 ways as a sum of consecutive naturals, for example, 1436998 + ... + 1437854.

It is an arithmetic number, because the mean of its divisors is an integer number (36440118).

Almost surely, 2^1231874082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231874082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457604720).

1231874082 is an abundant number, since it is smaller than the sum of its proper divisors (1683335358).

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

1231874082 is a wasteful number, since it uses less digits than its factorization.

1231874082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 1231874082 is about 35098.0637927507. The cubic root of 1231874082 is about 1071.9851585390.

The spelling of 1231874082 in words is "one billion, two hundred thirty-one million, eight hundred seventy-four thousand, eighty-two".