657106141 has 2 divisors, whose sum is σ = 657106142. Its totient is φ = 657106140.

The previous prime is 657106129. The next prime is 657106147. The reversal of 657106141 is 141601756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415303641 + 241802500 = 20379^2 + 15550^2 .

It is a cyclic number.

It is not a de Polignac number, because 657106141 - 2¹³ = 657097949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (657106147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328553070 + 328553071.

It is an arithmetic number, because the mean of its divisors is an integer number (328553071).

Almost surely, 2^657106141 is an apocalyptic number.

It is an amenable number.

657106141 is a deficient number, since it is larger than the sum of its proper divisors (1).

657106141 is an equidigital number, since it uses as much as digits as its factorization.

657106141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 657106141 is about 25634.0816297366. The cubic root of 657106141 is about 869.3843978209.

Adding to 657106141 its reverse (141601756), we get a palindrome (798707897).

The spelling of 657106141 in words is "six hundred fifty-seven million, one hundred six thousand, one hundred forty-one".