1313260078 has 16 divisors (see below), whose sum is σ = 2125121040. Its totient is φ = 605062656.

The previous prime is 1313260063. The next prime is 1313260079. The reversal of 1313260078 is 8700623131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313260079) 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, 28768 + ... + 58771.

It is an arithmetic number, because the mean of its divisors is an integer number (132820065).

Almost surely, 2^1313260078 is an apocalyptic number.

1313260078 is a deficient number, since it is larger than the sum of its proper divisors (811860962).

1313260078 is a wasteful number, since it uses less digits than its factorization.

1313260078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88131.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1313260078 is about 36238.9304201987. The cubic root of 1313260078 is about 1095.0910950534.

The spelling of 1313260078 in words is "one billion, three hundred thirteen million, two hundred sixty thousand, seventy-eight".