1292241061 has 2 divisors, whose sum is σ = 1292241062. Its totient is φ = 1292241060.

The previous prime is 1292241059. The next prime is 1292241101. The reversal of 1292241061 is 1601422921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1266292225 + 25948836 = 35585^2 + 5094^2 .

It is a cyclic number.

It is not a de Polignac number, because 1292241061 - 2¹ = 1292241059 is a prime.

Together with 1292241059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1292241001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646120530 + 646120531.

It is an arithmetic number, because the mean of its divisors is an integer number (646120531).

Almost surely, 2^1292241061 is an apocalyptic number.

It is an amenable number.

1292241061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1292241061 is an equidigital number, since it uses as much as digits as its factorization.

1292241061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1292241061 is about 35947.7546030347. The cubic root of 1292241061 is about 1089.2172538727.

Adding to 1292241061 its reverse (1601422921), we get a palindrome (2893663982).

The spelling of 1292241061 in words is "one billion, two hundred ninety-two million, two hundred forty-one thousand, sixty-one".