16136245 has 4 divisors (see below), whose sum is σ = 19363500. Its totient is φ = 12908992.

The previous prime is 16136243. The next prime is 16136257. The reversal of 16136245 is 54263161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54263161 = 6427 ⋅8443.

It can be written as a sum of positive squares in 2 ways, for example, as 4691556 + 11444689 = 2166^2 + 3383^2 .

It is a cyclic number.

It is not a de Polignac number, because 16136245 - 2¹ = 16136243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16136243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613620 + ... + 1613629.

It is an arithmetic number, because the mean of its divisors is an integer number (4840875).

Almost surely, 2^16136245 is an apocalyptic number.

It is an amenable number.

16136245 is a deficient number, since it is larger than the sum of its proper divisors (3227255).

16136245 is an equidigital number, since it uses as much as digits as its factorization.

16136245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227254.

The product of its digits is 4320, while the sum is 28.

The square root of 16136245 is about 4016.9945232723. The cubic root of 16136245 is about 252.6974307919.

The spelling of 16136245 in words is "sixteen million, one hundred thirty-six thousand, two hundred forty-five".