13785151 has 4 divisors (see below), whose sum is σ = 13825000. Its totient is φ = 13745304.

The previous prime is 13785133. The next prime is 13785169. The reversal of 13785151 is 15158731.

13785151 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15158731 = 7 ⋅2165533.

It is an interprime number because it is at equal distance from previous prime (13785133) and next prime (13785169).

It is a cyclic number.

It is not a de Polignac number, because 13785151 - 2¹⁵ = 13752383 is a prime.

It is a super-4 number, since 4×13785151⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13785251) 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 3 ways as a sum of consecutive naturals, for example, 19401 + ... + 20098.

It is an arithmetic number, because the mean of its divisors is an integer number (3456250).

Almost surely, 2^13785151 is an apocalyptic number.

13785151 is a deficient number, since it is larger than the sum of its proper divisors (39849).

13785151 is an equidigital number, since it uses as much as digits as its factorization.

13785151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39848.

The product of its digits is 4200, while the sum is 31.

The square root of 13785151 is about 3712.8359780631. The cubic root of 13785151 is about 239.7749684675.

The spelling of 13785151 in words is "thirteen million, seven hundred eighty-five thousand, one hundred fifty-one".