2545765147 has 4 divisors (see below), whose sum is σ = 2695516056. Its totient is φ = 2396014240.

The previous prime is 2545765139. The next prime is 2545765169. The reversal of 2545765147 is 7415675452.

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

It is a cyclic number.

It is not a de Polignac number, because 2545765147 - 2³ = 2545765139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2545765097 and 2545765106.

It is not an unprimeable number, because it can be changed into a prime (2545765177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74875429 + ... + 74875462.

It is an arithmetic number, because the mean of its divisors is an integer number (673879014).

Almost surely, 2^2545765147 is an apocalyptic number.

2545765147 is a deficient number, since it is larger than the sum of its proper divisors (149750909).

2545765147 is a wasteful number, since it uses less digits than its factorization.

2545765147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149750908.

The product of its digits is 1176000, while the sum is 46.

The square root of 2545765147 is about 50455.5759753072. The cubic root of 2545765147 is about 1365.4404956166.

The spelling of 2545765147 in words is "two billion, five hundred forty-five million, seven hundred sixty-five thousand, one hundred forty-seven".