1305235146 has 16 divisors (see below), whose sum is σ = 2764027584. Its totient is φ = 409485504.

The previous prime is 1305235069. The next prime is 1305235147. The reversal of 1305235146 is 6415325031.

It is not an unprimeable number, because it can be changed into a prime (1305235147) 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, 6398110 + ... + 6398313.

It is an arithmetic number, because the mean of its divisors is an integer number (172751724).

Almost surely, 2^1305235146 is an apocalyptic number.

1305235146 is an abundant number, since it is smaller than the sum of its proper divisors (1458792438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1305235146 is a wasteful number, since it uses less digits than its factorization.

1305235146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796445.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1305235146 is about 36128.0382251791. The cubic root of 1305235146 is about 1092.8559467982.

The spelling of 1305235146 in words is "one billion, three hundred five million, two hundred thirty-five thousand, one hundred forty-six".