1295478993 has 8 divisors (see below), whose sum is σ = 1751633856. Its totient is φ = 851488400.

The previous prime is 1295478973. The next prime is 1295478997. The reversal of 1295478993 is 3998745921.

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 1295478993 - 2¹² = 1295474897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1295478997) 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, 3040818 + ... + 3041243.

It is an arithmetic number, because the mean of its divisors is an integer number (218954232).

Almost surely, 2^1295478993 is an apocalyptic number.

It is an amenable number.

1295478993 is a deficient number, since it is larger than the sum of its proper divisors (456154863).

1295478993 is an equidigital number, since it uses as much as digits as its factorization.

1295478993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6082135.

The product of its digits is 4898880, while the sum is 57.

The square root of 1295478993 is about 35992.7630642606. The cubic root of 1295478993 is about 1090.1262354149.

The spelling of 1295478993 in words is "one billion, two hundred ninety-five million, four hundred seventy-eight thousand, nine hundred ninety-three".