5122420397 has 2 divisors, whose sum is σ = 5122420398. Its totient is φ = 5122420396.

The previous prime is 5122420363. The next prime is 5122420427. The reversal of 5122420397 is 7930242215.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4175873641 + 946546756 = 64621^2 + 30766^2 .

It is a cyclic number.

It is not a de Polignac number, because 5122420397 - 2¹⁰ = 5122419373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5122420327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2561210198 + 2561210199.

It is an arithmetic number, because the mean of its divisors is an integer number (2561210199).

Almost surely, 2^5122420397 is an apocalyptic number.

It is an amenable number.

5122420397 is a deficient number, since it is larger than the sum of its proper divisors (1).

5122420397 is an equidigital number, since it uses as much as digits as its factorization.

5122420397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 5122420397 is about 71571.0863198261. The cubic root of 5122420397 is about 1723.8193023261.

The spelling of 5122420397 in words is "five billion, one hundred twenty-two million, four hundred twenty thousand, three hundred ninety-seven".