1310780090 has 16 divisors (see below), whose sum is σ = 2361423240. Its totient is φ = 523863360.

The previous prime is 1310780071. The next prime is 1310780111. The reversal of 1310780090 is 900870131.

It can be written as a sum of positive squares in 4 ways, for example, as 1283144041 + 27636049 = 35821^2 + 5257^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43685 + ... + 67304.

Almost surely, 2^1310780090 is an apocalyptic number.

1310780090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1310780090 is a deficient number, since it is larger than the sum of its proper divisors (1050643150).

1310780090 is a wasteful number, since it uses less digits than its factorization.

1310780090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112177.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1310780090 is about 36204.6970709603. The cubic root of 1310780090 is about 1094.4013296499.

The spelling of 1310780090 in words is "one billion, three hundred ten million, seven hundred eighty thousand, ninety".