607620121 has 2 divisors, whose sum is σ = 607620122. Its totient is φ = 607620120.

The previous prime is 607620113. The next prime is 607620191. The reversal of 607620121 is 121026706.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 560505625 + 47114496 = 23675^2 + 6864^2 .

It is a cyclic number.

It is not a de Polignac number, because 607620121 - 2³ = 607620113 is a prime.

It is a super-2 number, since 2×607620121² = 738404422888109282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (607620191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303810060 + 303810061.

It is an arithmetic number, because the mean of its divisors is an integer number (303810061).

Almost surely, 2^607620121 is an apocalyptic number.

It is an amenable number.

607620121 is a deficient number, since it is larger than the sum of its proper divisors (1).

607620121 is an equidigital number, since it uses as much as digits as its factorization.

607620121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 607620121 is about 24649.9517443747. The cubic root of 607620121 is about 846.9882436420.

Adding to 607620121 its reverse (121026706), we get a palindrome (728646827).

The spelling of 607620121 in words is "six hundred seven million, six hundred twenty thousand, one hundred twenty-one".