13750785 has 48 divisors (see below), whose sum is σ = 25356240. Its totient is φ = 6881280.

The previous prime is 13750769. The next prime is 13750787. The reversal of 13750785 is 58705731.

It can be written as a sum of positive squares in 8 ways, for example, as 1521 + 13749264 = 39^2 + 3708^2 .

It is not a de Polignac number, because 13750785 - 2⁴ = 13750769 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13750787) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53377 + ... + 53633.

It is an arithmetic number, because the mean of its divisors is an integer number (528255).

Almost surely, 2^13750785 is an apocalyptic number.

13750785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13750785 is a deficient number, since it is larger than the sum of its proper divisors (11605455).

13750785 is a wasteful number, since it uses less digits than its factorization.

13750785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 13750785 is about 3708.2050914155. The cubic root of 13750785 is about 239.5755518750.

It can be divided in two parts, 13750 and 785, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 13750785 in words is "thirteen million, seven hundred fifty thousand, seven hundred eighty-five".