1295630015 has 4 divisors (see below), whose sum is σ = 1554756024. Its totient is φ = 1036504008.

The previous prime is 1295630003. The next prime is 1295630041. The reversal of 1295630015 is 5100365921.

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 1295630015 - 2¹⁰ = 1295628991 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 129562997 + ... + 129563006.

It is an arithmetic number, because the mean of its divisors is an integer number (388689006).

Almost surely, 2^1295630015 is an apocalyptic number.

1295630015 is a deficient number, since it is larger than the sum of its proper divisors (259126009).

1295630015 is an equidigital number, since it uses as much as digits as its factorization.

1295630015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259126008.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 1295630015 is about 35994.8609526416. The cubic root of 1295630015 is about 1090.1685946885.

Adding to 1295630015 its reverse (5100365921), we get a palindrome (6395995936).

The spelling of 1295630015 in words is "one billion, two hundred ninety-five million, six hundred thirty thousand, fifteen".