13750011 has 12 divisors (see below), whose sum is σ = 21666840. Its totient is φ = 8333280.

The previous prime is 13749997. The next prime is 13750043. The reversal of 13750011 is 11005731.

It is a happy number.

It is not a de Polignac number, because 13750011 - 2⁶ = 13749947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13750111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69346 + ... + 69543.

It is an arithmetic number, because the mean of its divisors is an integer number (1805570).

Almost surely, 2^13750011 is an apocalyptic number.

13750011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13750011 is a deficient number, since it is larger than the sum of its proper divisors (7916829).

13750011 is a wasteful number, since it uses less digits than its factorization.

13750011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138906 (or 138903 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 13750011 is about 3708.1007267872. The cubic root of 13750011 is about 239.5710567387.

Adding to 13750011 its reverse (11005731), we get a palindrome (24755742).

The spelling of 13750011 in words is "thirteen million, seven hundred fifty thousand, eleven".