13750431 has 8 divisors (see below), whose sum is σ = 18352560. Its totient is φ = 9157632.

The previous prime is 13750427. The next prime is 13750439. The reversal of 13750431 is 13405731.

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

It is not a de Polignac number, because 13750431 - 2² = 13750427 is a prime.

It is a super-2 number, since 2×13750431² = 378148705371522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13750439) 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, 2601 + ... + 5853.

It is an arithmetic number, because the mean of its divisors is an integer number (2294070).

Almost surely, 2^13750431 is an apocalyptic number.

13750431 is a deficient number, since it is larger than the sum of its proper divisors (4602129).

13750431 is a wasteful number, since it uses less digits than its factorization.

13750431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 13750431 is about 3708.1573591206. The cubic root of 13750431 is about 239.5734959809.

It can be divided in two parts, 137504 and 31, that multiplied together give a palindrome (4262624).

The spelling of 13750431 in words is "thirteen million, seven hundred fifty thousand, four hundred thirty-one".