616230133 has 2 divisors, whose sum is σ = 616230134. Its totient is φ = 616230132.

The previous prime is 616230101. The next prime is 616230143. The reversal of 616230133 is 331032616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607031044 + 9199089 = 24638^2 + 3033^2 .

It is a cyclic number.

It is not a de Polignac number, because 616230133 - 2⁵ = 616230101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616230098 and 616230107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616230143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308115066 + 308115067.

It is an arithmetic number, because the mean of its divisors is an integer number (308115067).

Almost surely, 2^616230133 is an apocalyptic number.

It is an amenable number.

616230133 is a deficient number, since it is larger than the sum of its proper divisors (1).

616230133 is an equidigital number, since it uses as much as digits as its factorization.

616230133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 616230133 is about 24823.9830204583. The cubic root of 616230133 is about 850.9701186643.

Adding to 616230133 its reverse (331032616), we get a palindrome (947262749).

The spelling of 616230133 in words is "six hundred sixteen million, two hundred thirty thousand, one hundred thirty-three".