2140624217 has 2 divisors, whose sum is σ = 2140624218. Its totient is φ = 2140624216.

The previous prime is 2140624153. The next prime is 2140624219. The reversal of 2140624217 is 7124260412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1385253961 + 755370256 = 37219^2 + 27484^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140624217 - 2⁶ = 2140624153 is a prime.

Together with 2140624219, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2140624217.

It is not a weakly prime, because it can be changed into another prime (2140624219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070312108 + 1070312109.

It is an arithmetic number, because the mean of its divisors is an integer number (1070312109).

Almost surely, 2^2140624217 is an apocalyptic number.

It is an amenable number.

2140624217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140624217 is an equidigital number, since it uses as much as digits as its factorization.

2140624217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2140624217 is about 46266.8803465287. The cubic root of 2140624217 is about 1288.7840267313.

Adding to 2140624217 its reverse (7124260412), we get a palindrome (9264884629).

The spelling of 2140624217 in words is "two billion, one hundred forty million, six hundred twenty-four thousand, two hundred seventeen".