1260890913 has 16 divisors (see below), whose sum is σ = 1742284800. Its totient is φ = 810149760.

The previous prime is 1260890861. The next prime is 1260890927. The reversal of 1260890913 is 3190980621.

It is not a de Polignac number, because 1260890913 - 2¹⁸ = 1260628769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1260890513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36768 + ... + 62238.

It is an arithmetic number, because the mean of its divisors is an integer number (108892800).

Almost surely, 2^1260890913 is an apocalyptic number.

It is an amenable number.

1260890913 is a deficient number, since it is larger than the sum of its proper divisors (481393887).

1260890913 is a wasteful number, since it uses less digits than its factorization.

1260890913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26072.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 1260890913 is about 35509.0257962676. The cubic root of 1260890913 is about 1080.3368042483.

The spelling of 1260890913 in words is "one billion, two hundred sixty million, eight hundred ninety thousand, nine hundred thirteen".