214540540 has 12 divisors (see below), whose sum is σ = 450535176. Its totient is φ = 85816208.

The previous prime is 214540531. The next prime is 214540549. The reversal of 214540540 is 45045412.

It is a happy number.

214540540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (214540531) and next prime (214540549).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214540549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5363494 + ... + 5363533.

It is an arithmetic number, because the mean of its divisors is an integer number (37544598).

Almost surely, 2^214540540 is an apocalyptic number.

214540540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214540540 is an abundant number, since it is smaller than the sum of its proper divisors (235994636).

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

214540540 is a wasteful number, since it uses less digits than its factorization.

214540540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10727036 (or 10727034 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 214540540 is about 14647.2024632692. The cubic root of 214540540 is about 598.6455930852.

Adding to 214540540 its reverse (45045412), we get a palindrome (259585952).

The spelling of 214540540 in words is "two hundred fourteen million, five hundred forty thousand, five hundred forty".