7215974741 has 2 divisors, whose sum is σ = 7215974742. Its totient is φ = 7215974740.

The previous prime is 7215974729. The next prime is 7215974743. The reversal of 7215974741 is 1474795127.

It is a happy number.

7215974741 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7203086641 + 12888100 = 84871^2 + 3590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7215974741 is a prime.

Together with 7215974743, 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 (7215974743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3607987370 + 3607987371.

It is an arithmetic number, because the mean of its divisors is an integer number (3607987371).

Almost surely, 2^7215974741 is an apocalyptic number.

It is an amenable number.

7215974741 is a deficient number, since it is larger than the sum of its proper divisors (1).

7215974741 is an equidigital number, since it uses as much as digits as its factorization.

7215974741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 47.

The square root of 7215974741 is about 84946.8936512690. The cubic root of 7215974741 is about 1932.4058108928.

The spelling of 7215974741 in words is "seven billion, two hundred fifteen million, nine hundred seventy-four thousand, seven hundred forty-one".