1205750913 has 8 divisors (see below), whose sum is σ = 1619234400. Its totient is φ = 798050688.

The previous prime is 1205750881. The next prime is 1205750927. The reversal of 1205750913 is 3190575021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1205750913 - 2⁵ = 1205750881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1205750113) 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, 1445328 + ... + 1446161.

It is an arithmetic number, because the mean of its divisors is an integer number (202404300).

Almost surely, 2^1205750913 is an apocalyptic number.

It is an amenable number.

1205750913 is a deficient number, since it is larger than the sum of its proper divisors (413483487).

1205750913 is a wasteful number, since it uses less digits than its factorization.

1205750913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891631.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 1205750913 is about 34723.9242165974. The cubic root of 1205750913 is about 1064.3534359339.

The spelling of 1205750913 in words is "one billion, two hundred five million, seven hundred fifty thousand, nine hundred thirteen".