7157215103 has 2 divisors, whose sum is σ = 7157215104. Its totient is φ = 7157215102.

The previous prime is 7157215073. The next prime is 7157215111. The reversal of 7157215103 is 3015127517.

It is a strong prime.

It is an emirp because it is prime and its reverse (3015127517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7157215103 - 2²⁸ = 6888779647 is a prime.

It is a super-2 number, since 2×7157215103² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7157215103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7157215133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3578607551 + 3578607552.

It is an arithmetic number, because the mean of its divisors is an integer number (3578607552).

Almost surely, 2^7157215103 is an apocalyptic number.

7157215103 is a deficient number, since it is larger than the sum of its proper divisors (1).

7157215103 is an equidigital number, since it uses as much as digits as its factorization.

7157215103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 7157215103 is about 84600.3256672219. The cubic root of 7157215103 is about 1927.1463194014.

The spelling of 7157215103 in words is "seven billion, one hundred fifty-seven million, two hundred fifteen thousand, one hundred three".