1456888889 has 4 divisors (see below), whose sum is σ = 1456967424. Its totient is φ = 1456810356.

The previous prime is 1456888847. The next prime is 1456888903. The reversal of 1456888889 is 9888886541.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9888886541 = 79 ⋅125175779.

It is a cyclic number.

It is not a de Polignac number, because 1456888889 - 2²⁸ = 1188453433 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1456888189) 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 3 ways as a sum of consecutive naturals, for example, 5804 + ... + 54290.

It is an arithmetic number, because the mean of its divisors is an integer number (364241856).

Almost surely, 2^1456888889 is an apocalyptic number.

It is an amenable number.

1456888889 is a deficient number, since it is larger than the sum of its proper divisors (78535).

1456888889 is an equidigital number, since it uses as much as digits as its factorization.

1456888889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78534.

The product of its digits is 35389440, while the sum is 65.

The square root of 1456888889 is about 38169.2138902545. The cubic root of 1456888889 is about 1133.6408239377.

The spelling of 1456888889 in words is "one billion, four hundred fifty-six million, eight hundred eighty-eight thousand, eight hundred eighty-nine".