305140132 has 12 divisors (see below), whose sum is σ = 582540336. Its totient is φ = 138700040.

The previous prime is 305140111. The next prime is 305140181. The reversal of 305140132 is 231041503.

It is a super-2 number, since 2×305140132² = 186221000313954848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3467458 + ... + 3467545.

It is an arithmetic number, because the mean of its divisors is an integer number (48545028).

Almost surely, 2^305140132 is an apocalyptic number.

It is an amenable number.

305140132 is a deficient number, since it is larger than the sum of its proper divisors (277400204).

305140132 is a wasteful number, since it uses less digits than its factorization.

305140132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6935018 (or 6935016 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 305140132 is about 17468.2607033442. The cubic root of 305140132 is about 673.2346238553.

Adding to 305140132 its reverse (231041503), we get a palindrome (536181635).

The spelling of 305140132 in words is "three hundred five million, one hundred forty thousand, one hundred thirty-two".