1042607261 has 2 divisors, whose sum is σ = 1042607262. Its totient is φ = 1042607260.

The previous prime is 1042607257. The next prime is 1042607341. The reversal of 1042607261 is 1627062401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 870604036 + 172003225 = 29506^2 + 13115^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042607261 - 2² = 1042607257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042607561) 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, 521303630 + 521303631.

It is an arithmetic number, because the mean of its divisors is an integer number (521303631).

Almost surely, 2^1042607261 is an apocalyptic number.

It is an amenable number.

1042607261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042607261 is an equidigital number, since it uses as much as digits as its factorization.

1042607261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1042607261 is about 32289.4295551965. The cubic root of 1042607261 is about 1014.0053546577.

Adding to 1042607261 its reverse (1627062401), we get a palindrome (2669669662).

The spelling of 1042607261 in words is "one billion, forty-two million, six hundred seven thousand, two hundred sixty-one".