214131545 has 8 divisors (see below), whose sum is σ = 257064840. Its totient is φ = 171233920.

The previous prime is 214131523. The next prime is 214131551. The reversal of 214131545 is 545131412.

214131545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 123904 + 214007641 = 352^2 + 14629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-214131545 is a prime.

It is a Curzon number.

It is a nialpdrome in base 11.

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, 6821 + ... + 21789.

It is an arithmetic number, because the mean of its divisors is an integer number (32133105).

Almost surely, 2^214131545 is an apocalyptic number.

It is an amenable number.

214131545 is a deficient number, since it is larger than the sum of its proper divisors (42933295).

214131545 is a wasteful number, since it uses less digits than its factorization.

214131545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17835.

The product of its digits is 2400, while the sum is 26.

The square root of 214131545 is about 14633.2342631422. The cubic root of 214131545 is about 598.2649365016.

Adding to 214131545 its reverse (545131412), we get a palindrome (759262957).

The spelling of 214131545 in words is "two hundred fourteen million, one hundred thirty-one thousand, five hundred forty-five".