7206154121 has 2 divisors, whose sum is σ = 7206154122. Its totient is φ = 7206154120.

The previous prime is 7206154091. The next prime is 7206154129. The reversal of 7206154121 is 1214516027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6027193225 + 1178960896 = 77635^2 + 34336^2 .

It is a cyclic number.

It is not a de Polignac number, because 7206154121 - 2⁶ = 7206154057 is a prime.

It is not a weakly prime, because it can be changed into another prime (7206154129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3603077060 + 3603077061.

It is an arithmetic number, because the mean of its divisors is an integer number (3603077061).

Almost surely, 2^7206154121 is an apocalyptic number.

It is an amenable number.

7206154121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7206154121 is an equidigital number, since it uses as much as digits as its factorization.

7206154121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 7206154121 is about 84889.0695024984. The cubic root of 7206154121 is about 1931.5287735096.

The spelling of 7206154121 in words is "seven billion, two hundred six million, one hundred fifty-four thousand, one hundred twenty-one".