16133241 has 4 divisors (see below), whose sum is σ = 21510992. Its totient is φ = 10755492.

The previous prime is 16133239. The next prime is 16133287. The reversal of 16133241 is 14233161.

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: 14233161 = 3 ⋅4744387.

It is not a de Polignac number, because 16133241 - 2¹ = 16133239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16133231) 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, 2688871 + ... + 2688876.

It is an arithmetic number, because the mean of its divisors is an integer number (5377748).

Almost surely, 2^16133241 is an apocalyptic number.

It is an amenable number.

16133241 is a deficient number, since it is larger than the sum of its proper divisors (5377751).

16133241 is an equidigital number, since it uses as much as digits as its factorization.

16133241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377750.

The product of its digits is 432, while the sum is 21.

The square root of 16133241 is about 4016.6205944799. The cubic root of 16133241 is about 252.6817487008.

The spelling of 16133241 in words is "sixteen million, one hundred thirty-three thousand, two hundred forty-one".