13029745 has 4 divisors (see below), whose sum is σ = 15635700. Its totient is φ = 10423792.

The previous prime is 13029743. The next prime is 13029749. The reversal of 13029745 is 54792031.

13029745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2119936 + 10909809 = 1456^2 + 3303^2 .

It is a cyclic number.

It is not a de Polignac number, because 13029745 - 2¹ = 13029743 is a prime.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (13029743) 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, 1302970 + ... + 1302979.

It is an arithmetic number, because the mean of its divisors is an integer number (3908925).

Almost surely, 2^13029745 is an apocalyptic number.

It is an amenable number.

13029745 is a deficient number, since it is larger than the sum of its proper divisors (2605955).

13029745 is an equidigital number, since it uses as much as digits as its factorization.

13029745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605954.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13029745 is about 3609.6738079777. The cubic root of 13029745 is about 235.3126666566.

The spelling of 13029745 in words is "thirteen million, twenty-nine thousand, seven hundred forty-five".