13750261 has 4 divisors (see below), whose sum is σ = 15714592. Its totient is φ = 11785932.

The previous prime is 13750259. The next prime is 13750283. The reversal of 13750261 is 16205731.

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 13750261 - 2¹ = 13750259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13750201) 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, 982155 + ... + 982168.

It is an arithmetic number, because the mean of its divisors is an integer number (3928648).

Almost surely, 2^13750261 is an apocalyptic number.

It is an amenable number.

13750261 is a deficient number, since it is larger than the sum of its proper divisors (1964331).

13750261 is an equidigital number, since it uses as much as digits as its factorization.

13750261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964330.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 13750261 is about 3708.1344366136. The cubic root of 13750261 is about 239.5725086746.

Adding to 13750261 its reverse (16205731), we get a palindrome (29955992).

The spelling of 13750261 in words is "thirteen million, seven hundred fifty thousand, two hundred sixty-one".