13031245 has 16 divisors (see below), whose sum is σ = 16560000. Its totient is φ = 9816768.

The previous prime is 13031243. The next prime is 13031261. The reversal of 13031245 is 54213031.

It is not a de Polignac number, because 13031245 - 2¹ = 13031243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21456 + ... + 22054.

It is an arithmetic number, because the mean of its divisors is an integer number (1035000).

Almost surely, 2^13031245 is an apocalyptic number.

It is an amenable number.

13031245 is a deficient number, since it is larger than the sum of its proper divisors (3528755).

13031245 is a wasteful number, since it uses less digits than its factorization.

13031245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13031245 is about 3609.8815770050. The cubic root of 13031245 is about 235.3216961363.

Adding to 13031245 its reverse (54213031), we get a palindrome (67244276).

It can be divided in two parts, 130 and 31245, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 13031245 in words is "thirteen million, thirty-one thousand, two hundred forty-five".