2131305146 has 16 divisors (see below), whose sum is σ = 3298651776. Its totient is φ = 1032222336.

The previous prime is 2131305139. The next prime is 2131305179. The reversal of 2131305146 is 6415031312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107756 + ... + 125991.

It is an arithmetic number, because the mean of its divisors is an integer number (206165736).

Almost surely, 2^2131305146 is an apocalyptic number.

2131305146 is a deficient number, since it is larger than the sum of its proper divisors (1167346630).

2131305146 is a wasteful number, since it uses less digits than its factorization.

2131305146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233893.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2131305146 is about 46166.0605423508. The cubic root of 2131305146 is about 1286.9110931766.

Adding to 2131305146 its reverse (6415031312), we get a palindrome (8546336458).

The spelling of 2131305146 in words is "two billion, one hundred thirty-one million, three hundred five thousand, one hundred forty-six".