1305011086 has 32 divisors (see below), whose sum is σ = 2194002720. Its totient is φ = 578534400.

The previous prime is 1305011039. The next prime is 1305011087. The reversal of 1305011086 is 6801105031.

It is a self number, because there is not a number n which added to its sum of digits gives 1305011086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305011087) 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, 111346 + ... + 122506.

It is an arithmetic number, because the mean of its divisors is an integer number (68562585).

Almost surely, 2^1305011086 is an apocalyptic number.

1305011086 is a deficient number, since it is larger than the sum of its proper divisors (888991634).

1305011086 is a wasteful number, since it uses less digits than its factorization.

1305011086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11380.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1305011086 is about 36124.9371764160. The cubic root of 1305011086 is about 1092.7934090715.

The spelling of 1305011086 in words is "one billion, three hundred five million, eleven thousand, eighty-six".