16261013 has 4 divisors (see below), whose sum is σ = 16607040. Its totient is φ = 15914988.

The previous prime is 16261001. The next prime is 16261073. The reversal of 16261013 is 31016261.

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: 31016261 = 233 ⋅133117.

It is a cyclic number.

It is not a de Polignac number, because 16261013 - 2⁴ = 16260997 is a prime.

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 (16261073) 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, 172943 + ... + 173036.

It is an arithmetic number, because the mean of its divisors is an integer number (4151760).

Almost surely, 2^16261013 is an apocalyptic number.

It is an amenable number.

16261013 is a deficient number, since it is larger than the sum of its proper divisors (346027).

16261013 is an equidigital number, since it uses as much as digits as its factorization.

16261013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346026.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 16261013 is about 4032.4946373182. The cubic root of 16261013 is about 253.3470581592.

Adding to 16261013 its reverse (31016261), we get a palindrome (47277274).

The spelling of 16261013 in words is "sixteen million, two hundred sixty-one thousand, thirteen".