13077145 has 8 divisors (see below), whose sum is σ = 15714504. Its totient is φ = 10447104.

The previous prime is 13077143. The next prime is 13077157. The reversal of 13077145 is 54177031.

13077145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 876096 + 12201049 = 936^2 + 3493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13077145 - 2¹ = 13077143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13077143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3547 + ... + 6223.

It is an arithmetic number, because the mean of its divisors is an integer number (1964313).

Almost surely, 2^13077145 is an apocalyptic number.

It is an amenable number.

13077145 is a deficient number, since it is larger than the sum of its proper divisors (2637359).

13077145 is an equidigital number, since it uses as much as digits as its factorization.

13077145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 13077145 is about 3616.2335378125. The cubic root of 13077145 is about 235.5976638542.

It can be divided in two parts, 130771 and 45, that added together give a triangular number (130816 = T₅₁₁).

The spelling of 13077145 in words is "thirteen million, seventy-seven thousand, one hundred forty-five".