1306980015 has 32 divisors (see below), whose sum is σ = 2288653056. Its totient is φ = 631637760.

The previous prime is 1306980007. The next prime is 1306980107. The reversal of 1306980015 is 5100896031.

It is not a de Polignac number, because 1306980015 - 2³ = 1306980007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38992 + ... + 64298.

It is an arithmetic number, because the mean of its divisors is an integer number (71520408).

Almost surely, 2^1306980015 is an apocalyptic number.

1306980015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1306980015 is a deficient number, since it is larger than the sum of its proper divisors (981673041).

1306980015 is a wasteful number, since it uses less digits than its factorization.

1306980015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25639.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1306980015 is about 36152.1785650602. The cubic root of 1306980015 is about 1093.3427151208.

The spelling of 1306980015 in words is "one billion, three hundred six million, nine hundred eighty thousand, fifteen".