16149893 has 4 divisors (see below), whose sum is σ = 16423680. Its totient is φ = 15876108.

The previous prime is 16149869. The next prime is 16149899. The reversal of 16149893 is 39894161.

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: 39894161 = 89 ⋅448249.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16149893 is a prime.

It is a super-2 number, since 2×16149893² = 521638087822898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16149893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16149899) 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, 136805 + ... + 136922.

It is an arithmetic number, because the mean of its divisors is an integer number (4105920).

Almost surely, 2^16149893 is an apocalyptic number.

It is an amenable number.

16149893 is a deficient number, since it is larger than the sum of its proper divisors (273787).

16149893 is an equidigital number, since it uses as much as digits as its factorization.

16149893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273786.

The product of its digits is 46656, while the sum is 41.

The square root of 16149893 is about 4018.6929467179. The cubic root of 16149893 is about 252.7686543564.

The spelling of 16149893 in words is "sixteen million, one hundred forty-nine thousand, eight hundred ninety-three".