16293149 has 4 divisors (see below), whose sum is σ = 16489536. Its totient is φ = 16096764.

The previous prime is 16293143. The next prime is 16293169. The reversal of 16293149 is 94139261.

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 16293149 - 2⁴ = 16293133 is a prime.

It is a super-4 number, since 4×16293149⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16293143) 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, 98069 + ... + 98234.

It is an arithmetic number, because the mean of its divisors is an integer number (4122384).

Almost surely, 2^16293149 is an apocalyptic number.

It is an amenable number.

16293149 is a deficient number, since it is larger than the sum of its proper divisors (196387).

16293149 is an equidigital number, since it uses as much as digits as its factorization.

16293149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196386.

The product of its digits is 11664, while the sum is 35.

The square root of 16293149 is about 4036.4773008157. The cubic root of 16293149 is about 253.5138416115.

The spelling of 16293149 in words is "sixteen million, two hundred ninety-three thousand, one hundred forty-nine".