261046007 has 2 divisors, whose sum is σ = 261046008. Its totient is φ = 261046006.

The previous prime is 261045979. The next prime is 261046043. The reversal of 261046007 is 700640162.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261046007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261046207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130523003 + 130523004.

It is an arithmetic number, because the mean of its divisors is an integer number (130523004).

Almost surely, 2^261046007 is an apocalyptic number.

261046007 is a deficient number, since it is larger than the sum of its proper divisors (1).

261046007 is an equidigital number, since it uses as much as digits as its factorization.

261046007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 261046007 is about 16156.9182395654. The cubic root of 261046007 is about 639.1052005514.

Adding to 261046007 its reverse (700640162), we get a palindrome (961686169).

The spelling of 261046007 in words is "two hundred sixty-one million, forty-six thousand, seven".