617288141 has 2 divisors, whose sum is σ = 617288142. Its totient is φ = 617288140.

The previous prime is 617288107. The next prime is 617288143. The reversal of 617288141 is 141882716.

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., 573794116 + 43494025 = 23954^2 + 6595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617288141 is a prime.

It is a Sophie Germain prime.

Together with 617288143, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 617288095 and 617288104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617288143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308644070 + 308644071.

It is an arithmetic number, because the mean of its divisors is an integer number (308644071).

Almost surely, 2^617288141 is an apocalyptic number.

It is an amenable number.

617288141 is a deficient number, since it is larger than the sum of its proper divisors (1).

617288141 is an equidigital number, since it uses as much as digits as its factorization.

617288141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 38.

The square root of 617288141 is about 24845.2840796800. The cubic root of 617288141 is about 851.4568515552.

The spelling of 617288141 in words is "six hundred seventeen million, two hundred eighty-eight thousand, one hundred forty-one".