60431561 has 2 divisors, whose sum is σ = 60431562. Its totient is φ = 60431560.

The previous prime is 60431551. The next prime is 60431573. The reversal of 60431561 is 16513406.

60431561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47334400 + 13097161 = 6880^2 + 3619^2 .

It is a cyclic number.

It is not a de Polignac number, because 60431561 - 2²² = 56237257 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 60431561.

It is not a weakly prime, because it can be changed into another prime (60431551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30215780 + 30215781.

It is an arithmetic number, because the mean of its divisors is an integer number (30215781).

Almost surely, 2^60431561 is an apocalyptic number.

It is an amenable number.

60431561 is a deficient number, since it is larger than the sum of its proper divisors (1).

60431561 is an equidigital number, since it uses as much as digits as its factorization.

60431561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 60431561 is about 7773.7739226196. The cubic root of 60431561 is about 392.4231361245.

Adding to 60431561 its reverse (16513406), we get a palindrome (76944967).

The spelling of 60431561 in words is "sixty million, four hundred thirty-one thousand, five hundred sixty-one".