16331129 has 4 divisors (see below), whose sum is σ = 16343376. Its totient is φ = 16318884.

The previous prime is 16331123. The next prime is 16331131. The reversal of 16331129 is 92113361.

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: 92113361 = 17 ⋅5418433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16331129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16331098 and 16331107.

It is not an unprimeable number, because it can be changed into a prime (16331123) 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, 3839 + ... + 6884.

It is an arithmetic number, because the mean of its divisors is an integer number (4085844).

Almost surely, 2^16331129 is an apocalyptic number.

It is an amenable number.

16331129 is a deficient number, since it is larger than the sum of its proper divisors (12247).

16331129 is a wasteful number, since it uses less digits than its factorization.

16331129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12246.

The product of its digits is 972, while the sum is 26.

The square root of 16331129 is about 4041.1791596018. The cubic root of 16331129 is about 253.7106724786.

The spelling of 16331129 in words is "sixteen million, three hundred thirty-one thousand, one hundred twenty-nine".