13745199 has 8 divisors (see below), whose sum is σ = 19736752. Its totient is φ = 8458560.

The previous prime is 13745177. The next prime is 13745201. The reversal of 13745199 is 99154731.

It is a happy number.

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

It is not a de Polignac number, because 13745199 - 2¹¹ = 13743151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 352441 = 13745199 / (1 + 3 + 7 + 4 + 5 + 1 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13745899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176182 + ... + 176259.

It is an arithmetic number, because the mean of its divisors is an integer number (2467094).

Almost surely, 2^13745199 is an apocalyptic number.

13745199 is a deficient number, since it is larger than the sum of its proper divisors (5991553).

13745199 is a wasteful number, since it uses less digits than its factorization.

13745199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352457.

The product of its digits is 34020, while the sum is 39.

The square root of 13745199 is about 3707.4518203208. The cubic root of 13745199 is about 239.5431064476.

It can be divided in two parts, 137451 and 99, that added together give a triangular number (137550 = T₅₂₄).

The spelling of 13745199 in words is "thirteen million, seven hundred forty-five thousand, one hundred ninety-nine".