8151889 has 4 divisors (see below), whose sum is σ = 8165440. Its totient is φ = 8138340.

The previous prime is 8151887. The next prime is 8151901. The reversal of 8151889 is 9881518.

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 a cyclic number.

It is not a de Polignac number, because 8151889 - 2¹ = 8151887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8151881) 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, 5829 + ... + 7090.

It is an arithmetic number, because the mean of its divisors is an integer number (2041360).

Almost surely, 2^8151889 is an apocalyptic number.

It is an amenable number.

8151889 is a deficient number, since it is larger than the sum of its proper divisors (13551).

8151889 is a wasteful number, since it uses less digits than its factorization.

8151889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13550.

The product of its digits is 23040, while the sum is 40.

The square root of 8151889 is about 2855.1513094756. The cubic root of 8151889 is about 201.2578145957.

It can be divided in two parts, 815 and 1889, that added together give a square (2704 = 52²).

The spelling of 8151889 in words is "eight million, one hundred fifty-one thousand, eight hundred eighty-nine".