214131505 has 16 divisors (see below), whose sum is σ = 303793920. Its totient is φ = 141769152.

The previous prime is 214131499. The next prime is 214131517. The reversal of 214131505 is 505131412.

It is a happy number.

It is not a de Polignac number, because 214131505 - 2⁹ = 214130993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104469 + ... + 106498.

It is an arithmetic number, because the mean of its divisors is an integer number (18987120).

Almost surely, 2^214131505 is an apocalyptic number.

It is an amenable number.

214131505 is a deficient number, since it is larger than the sum of its proper divisors (89662415).

214131505 is a wasteful number, since it uses less digits than its factorization.

214131505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211008.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 214131505 is about 14633.2328963903. The cubic root of 214131505 is about 598.2648992494.

Adding to 214131505 its reverse (505131412), we get a palindrome (719262917).

The spelling of 214131505 in words is "two hundred fourteen million, one hundred thirty-one thousand, five hundred five".