13387245 has 32 divisors (see below), whose sum is σ = 23182848. Its totient is φ = 6571008.

The previous prime is 13387201. The next prime is 13387249. The reversal of 13387245 is 54278331.

It is not a de Polignac number, because 13387245 - 2⁶ = 13387181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13387249) 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 31 ways as a sum of consecutive naturals, for example, 11427 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (724464).

Almost surely, 2^13387245 is an apocalyptic number.

13387245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13387245 is a deficient number, since it is larger than the sum of its proper divisors (9795603).

13387245 is a wasteful number, since it uses less digits than its factorization.

13387245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its digits is 20160, while the sum is 33.

The square root of 13387245 is about 3658.8584285266. The cubic root of 13387245 is about 237.4453872582.

It can be divided in two parts, 133 and 87245, that added together give a palindrome (87378).

The spelling of 13387245 in words is "thirteen million, three hundred eighty-seven thousand, two hundred forty-five".