7219374137 has 2 divisors, whose sum is σ = 7219374138. Its totient is φ = 7219374136.

The previous prime is 7219373983. The next prime is 7219374179. The reversal of 7219374137 is 7314739127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7216332601 + 3041536 = 84949^2 + 1744^2 .

It is an emirp because it is prime and its reverse (7314739127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7219374137 - 2¹⁰ = 7219373113 is a prime.

It is not a weakly prime, because it can be changed into another prime (7219374187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3609687068 + 3609687069.

It is an arithmetic number, because the mean of its divisors is an integer number (3609687069).

Almost surely, 2^7219374137 is an apocalyptic number.

It is an amenable number.

7219374137 is a deficient number, since it is larger than the sum of its proper divisors (1).

7219374137 is an equidigital number, since it uses as much as digits as its factorization.

7219374137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 44.

The square root of 7219374137 is about 84966.9002435654. The cubic root of 7219374137 is about 1932.7092109439.

The spelling of 7219374137 in words is "seven billion, two hundred nineteen million, three hundred seventy-four thousand, one hundred thirty-seven".