70607261 has 2 divisors, whose sum is σ = 70607262. Its totient is φ = 70607260.

The previous prime is 70607233. The next prime is 70607269. The reversal of 70607261 is 16270607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 25300900 = 6731^2 + 5030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70607261 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70607269) 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, 35303630 + 35303631.

It is an arithmetic number, because the mean of its divisors is an integer number (35303631).

Almost surely, 2^70607261 is an apocalyptic number.

It is an amenable number.

70607261 is a deficient number, since it is larger than the sum of its proper divisors (1).

70607261 is an equidigital number, since it uses as much as digits as its factorization.

70607261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 70607261 is about 8402.8126838577. The cubic root of 70607261 is about 413.3168601800.

Adding to 70607261 its reverse (16270607), we get a palindrome (86877868).

The spelling of 70607261 in words is "seventy million, six hundred seven thousand, two hundred sixty-one".