7215015151 has 2 divisors, whose sum is σ = 7215015152. Its totient is φ = 7215015150.

The previous prime is 7215015127. The next prime is 7215015163. The reversal of 7215015151 is 1515105127.

7215015151 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 is a cyclic number.

It is not a de Polignac number, because 7215015151 - 2³¹ = 5067531503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7215015191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3607507575 + 3607507576.

It is an arithmetic number, because the mean of its divisors is an integer number (3607507576).

Almost surely, 2^7215015151 is an apocalyptic number.

7215015151 is a deficient number, since it is larger than the sum of its proper divisors (1).

7215015151 is an equidigital number, since it uses as much as digits as its factorization.

7215015151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1750, while the sum is 28.

The square root of 7215015151 is about 84941.2452875516. The cubic root of 7215015151 is about 1932.3201491233.

The spelling of 7215015151 in words is "seven billion, two hundred fifteen million, fifteen thousand, one hundred fifty-one".