1295670745 has 4 divisors (see below), whose sum is σ = 1554804900. Its totient is φ = 1036536592.

The previous prime is 1295670737. The next prime is 1295670763. The reversal of 1295670745 is 5470765921.

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 973252809 + 322417936 = 31197^2 + 17956^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295670745 - 2³ = 1295670737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1295670695 and 1295670704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129567070 + ... + 129567079.

It is an arithmetic number, because the mean of its divisors is an integer number (388701225).

Almost surely, 2^1295670745 is an apocalyptic number.

It is an amenable number.

1295670745 is a deficient number, since it is larger than the sum of its proper divisors (259134155).

1295670745 is an equidigital number, since it uses as much as digits as its factorization.

1295670745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259134154.

The product of its (nonzero) digits is 529200, while the sum is 46.

The square root of 1295670745 is about 35995.4267234047. The cubic root of 1295670745 is about 1090.1800182433.

The spelling of 1295670745 in words is "one billion, two hundred ninety-five million, six hundred seventy thousand, seven hundred forty-five".