1816935141 has 80 divisors (see below), whose sum is σ = 2982952960. Its totient is φ = 982406880.

The previous prime is 1816935119. The next prime is 1816935143. The reversal of 1816935141 is 1415396181.

1816935141 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1816935141 - 2²⁹ = 1280064229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1816935141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816935143) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17640096 + ... + 17640198.

It is an arithmetic number, because the mean of its divisors is an integer number (37286912).

Almost surely, 2^1816935141 is an apocalyptic number.

It is an amenable number.

1816935141 is a deficient number, since it is larger than the sum of its proper divisors (1166017819).

1816935141 is an equidigital number, since it uses as much as digits as its factorization.

1816935141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 223 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 1816935141 is about 42625.5221786197. The cubic root of 1816935141 is about 1220.2434211494.

The spelling of 1816935141 in words is "one billion, eight hundred sixteen million, nine hundred thirty-five thousand, one hundred forty-one".