60127981 has 2 divisors, whose sum is σ = 60127982. Its totient is φ = 60127980.

The previous prime is 60127961. The next prime is 60128039. The reversal of 60127981 is 18972106.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43112356 + 17015625 = 6566^2 + 4125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60127981 is a prime.

It is a super-2 number, since 2×60127981² = 7230748198272722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60127961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30063990 + 30063991.

It is an arithmetic number, because the mean of its divisors is an integer number (30063991).

Almost surely, 2^60127981 is an apocalyptic number.

It is an amenable number.

60127981 is a deficient number, since it is larger than the sum of its proper divisors (1).

60127981 is an equidigital number, since it uses as much as digits as its factorization.

60127981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 60127981 is about 7754.2234298478. The cubic root of 60127981 is about 391.7649157074.

It can be divided in two parts, 601 and 27981, that added together give a palindrome (28582).

The spelling of 60127981 in words is "sixty million, one hundred twenty-seven thousand, nine hundred eighty-one".