13740273 has 10 divisors (see below), whose sum is σ = 20525714. Its totient is φ = 9160128.

The previous prime is 13740271. The next prime is 13740277. The reversal of 13740273 is 37204731.

13740273 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9529569 + 4210704 = 3087^2 + 2052^2 .

It is not a de Polignac number, because 13740273 - 2¹ = 13740271 is a prime.

It is a super-2 number, since 2×13740273² = 377590204229058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13740271) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 84736 + ... + 84897.

Almost surely, 2^13740273 is an apocalyptic number.

It is an amenable number.

13740273 is a deficient number, since it is larger than the sum of its proper divisors (6785441).

13740273 is an equidigital number, since it uses as much as digits as its factorization.

13740273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169645 (or 169636 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 13740273 is about 3706.7874230929. The cubic root of 13740273 is about 239.5144872346.

The spelling of 13740273 in words is "thirteen million, seven hundred forty thousand, two hundred seventy-three".