219040007 has 2 divisors, whose sum is σ = 219040008. Its totient is φ = 219040006.

The previous prime is 219039967. The next prime is 219040009. The reversal of 219040007 is 700040912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 219040007 - 2¹² = 219035911 is a prime.

Together with 219040009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219040009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109520003 + 109520004.

It is an arithmetic number, because the mean of its divisors is an integer number (109520004).

Almost surely, 2^219040007 is an apocalyptic number.

219040007 is a deficient number, since it is larger than the sum of its proper divisors (1).

219040007 is an equidigital number, since it uses as much as digits as its factorization.

219040007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 219040007 is about 14800.0002364865. Note that the first 3 decimals coincide. The cubic root of 219040007 is about 602.8017182246.

Adding to 219040007 its reverse (700040912), we get a palindrome (919080919).

The spelling of 219040007 in words is "two hundred nineteen million, forty thousand, seven".