3854859149 has 4 divisors (see below), whose sum is σ = 3859091520. Its totient is φ = 3850626780.

The previous prime is 3854859131. The next prime is 3854859181. The reversal of 3854859149 is 9419584583.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9419584583 = 53 ⋅177728011.

It is a cyclic number.

It is not a de Polignac number, because 3854859149 - 2⁸ = 3854858893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3854859094 and 3854859103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3854859199) 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, 2114819 + ... + 2116640.

It is an arithmetic number, because the mean of its divisors is an integer number (964772880).

Almost surely, 2^3854859149 is an apocalyptic number.

It is an amenable number.

3854859149 is a deficient number, since it is larger than the sum of its proper divisors (4232371).

3854859149 is an equidigital number, since it uses as much as digits as its factorization.

3854859149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232370.

The product of its digits is 6220800, while the sum is 56.

The square root of 3854859149 is about 62087.5120213397. The cubic root of 3854859149 is about 1567.9643040180.

The spelling of 3854859149 in words is "three billion, eight hundred fifty-four million, eight hundred fifty-nine thousand, one hundred forty-nine".