7361655121 has 2 divisors, whose sum is σ = 7361655122. Its totient is φ = 7361655120.

The previous prime is 7361655107. The next prime is 7361655137. The reversal of 7361655121 is 1215561637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4905461521 + 2456193600 = 70039^2 + 49560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7361655121 is a prime.

It is a super-2 number, since 2×7361655121² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7361655101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3680827560 + 3680827561.

It is an arithmetic number, because the mean of its divisors is an integer number (3680827561).

Almost surely, 2^7361655121 is an apocalyptic number.

It is an amenable number.

7361655121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7361655121 is an equidigital number, since it uses as much as digits as its factorization.

7361655121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The square root of 7361655121 is about 85800.0881176704. The cubic root of 7361655121 is about 1945.3234523959.

The spelling of 7361655121 in words is "seven billion, three hundred sixty-one million, six hundred fifty-five thousand, one hundred twenty-one".