16132789 has 4 divisors (see below), whose sum is σ = 16152556. Its totient is φ = 16113024.

The previous prime is 16132771. The next prime is 16132799. The reversal of 16132789 is 98723161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98723161 = 89 ⋅1109249.

It can be written as a sum of positive squares in 2 ways, for example, as 8614225 + 7518564 = 2935^2 + 2742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16132789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16132799) 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, 8604 + ... + 10309.

It is an arithmetic number, because the mean of its divisors is an integer number (4038139).

Almost surely, 2^16132789 is an apocalyptic number.

It is an amenable number.

16132789 is a deficient number, since it is larger than the sum of its proper divisors (19767).

16132789 is an equidigital number, since it uses as much as digits as its factorization.

16132789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19766.

The product of its digits is 18144, while the sum is 37.

The square root of 16132789 is about 4016.5643278802. The cubic root of 16132789 is about 252.6793889100.

The spelling of 16132789 in words is "sixteen million, one hundred thirty-two thousand, seven hundred eighty-nine".