13740215 has 16 divisors (see below), whose sum is σ = 17141760. Its totient is φ = 10565280.

The previous prime is 13740203. The next prime is 13740241. The reversal of 13740215 is 51204731.

It is not a de Polignac number, because 13740215 - 2⁶ = 13740151 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13370 + ... + 14360.

It is an arithmetic number, because the mean of its divisors is an integer number (1071360).

Almost surely, 2^13740215 is an apocalyptic number.

13740215 is a deficient number, since it is larger than the sum of its proper divisors (3401545).

13740215 is an equidigital number, since it uses as much as digits as its factorization.

13740215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 13740215 is about 3706.7795995986. The cubic root of 13740215 is about 239.5141502238.

Adding to 13740215 its reverse (51204731), we get a palindrome (64944946).

The spelling of 13740215 in words is "thirteen million, seven hundred forty thousand, two hundred fifteen".