13745146 has 8 divisors (see below), whose sum is σ = 21830580. Its totient is φ = 6468288.

The previous prime is 13745143. The next prime is 13745153. The reversal of 13745146 is 64154731.

It can be written as a sum of positive squares in 2 ways, for example, as 13402921 + 342225 = 3661^2 + 585^2 .

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

It is a super-2 number, since 2×13745146² = 377858077122632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13745141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202101 + ... + 202168.

Almost surely, 2^13745146 is an apocalyptic number.

13745146 is a deficient number, since it is larger than the sum of its proper divisors (8085434).

13745146 is a wasteful number, since it uses less digits than its factorization.

13745146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404288.

The product of its digits is 10080, while the sum is 31.

The square root of 13745146 is about 3707.4446725474. Note that the first 3 decimals coincide. The cubic root of 13745146 is about 239.5427985631.

Adding to 13745146 its reverse (64154731), we get a palindrome (77899877).

The spelling of 13745146 in words is "thirteen million, seven hundred forty-five thousand, one hundred forty-six".