13750491 has 8 divisors (see below), whose sum is σ = 18354960. Its totient is φ = 9156512.

The previous prime is 13750469. The next prime is 13750493. The reversal of 13750491 is 19405731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13750491 - 2⁶ = 13750427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13750493) 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 7 ways as a sum of consecutive naturals, for example, 1261 + ... + 5393.

It is an arithmetic number, because the mean of its divisors is an integer number (2294370).

Almost surely, 2^13750491 is an apocalyptic number.

13750491 is a deficient number, since it is larger than the sum of its proper divisors (4604469).

13750491 is a wasteful number, since it uses less digits than its factorization.

13750491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 13750491 is about 3708.1654493833. The cubic root of 13750491 is about 239.5738444400.

It can be divided in two parts, 13750 and 491, that added together give a palindrome (14241).

The spelling of 13750491 in words is "thirteen million, seven hundred fifty thousand, four hundred ninety-one".