60213661 has 2 divisors, whose sum is σ = 60213662. Its totient is φ = 60213660.

The previous prime is 60213611. The next prime is 60213683. The reversal of 60213661 is 16631206.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43811161 + 16402500 = 6619^2 + 4050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60213661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60213611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30106830 + 30106831.

It is an arithmetic number, because the mean of its divisors is an integer number (30106831).

Almost surely, 2^60213661 is an apocalyptic number.

It is an amenable number.

60213661 is a deficient number, since it is larger than the sum of its proper divisors (1).

60213661 is an equidigital number, since it uses as much as digits as its factorization.

60213661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 60213661 is about 7759.7461943030. The cubic root of 60213661 is about 391.9509105716.

Adding to 60213661 its reverse (16631206), we get a palindrome (76844867).

The spelling of 60213661 in words is "sixty million, two hundred thirteen thousand, six hundred sixty-one".