1881373087 has 8 divisors (see below), whose sum is σ = 2061372240. Its totient is φ = 1702868160.

The previous prime is 1881373079. The next prime is 1881373093. The reversal of 1881373087 is 7803731881.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1881373087 - 2³ = 1881373079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881173087) by changing a digit.

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, 370918 + ... + 375955.

It is an arithmetic number, because the mean of its divisors is an integer number (257671530).

Almost surely, 2^1881373087 is an apocalyptic number.

1881373087 is a deficient number, since it is larger than the sum of its proper divisors (179999153).

1881373087 is a wasteful number, since it uses less digits than its factorization.

1881373087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747113.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 1881373087 is about 43374.7978323819. The cubic root of 1881373087 is about 1234.5015580515.

The spelling of 1881373087 in words is "one billion, eight hundred eighty-one million, three hundred seventy-three thousand, eighty-seven".