1854902013 has 4 divisors (see below), whose sum is σ = 2473202688. Its totient is φ = 1236601340.

The previous prime is 1854902009. The next prime is 1854902017. The reversal of 1854902013 is 3102094581.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1854902009) and next prime (1854902017).

It is a cyclic number.

It is not a de Polignac number, because 1854902013 - 2² = 1854902009 is a prime.

It is a super-2 number, since 2×1854902013² = 6881322955662904338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1854902017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309150333 + ... + 309150338.

It is an arithmetic number, because the mean of its divisors is an integer number (618300672).

Almost surely, 2^1854902013 is an apocalyptic number.

It is an amenable number.

1854902013 is a deficient number, since it is larger than the sum of its proper divisors (618300675).

1854902013 is an equidigital number, since it uses as much as digits as its factorization.

1854902013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618300674.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1854902013 is about 43068.5733801342. The cubic root of 1854902013 is about 1228.6843431072.

Adding to 1854902013 its reverse (3102094581), we get a palindrome (4956996594).

The spelling of 1854902013 in words is "one billion, eight hundred fifty-four million, nine hundred two thousand, thirteen".