70130761 has 2 divisors, whose sum is σ = 70130762. Its totient is φ = 70130760.

The previous prime is 70130741. The next prime is 70130771. The reversal of 70130761 is 16703107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69822736 + 308025 = 8356^2 + 555^2 .

It is an emirp because it is prime and its reverse (16703107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70130761 - 2¹¹ = 70128713 is a prime.

It is not a weakly prime, because it can be changed into another prime (70130701) 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, 35065380 + 35065381.

It is an arithmetic number, because the mean of its divisors is an integer number (35065381).

Almost surely, 2^70130761 is an apocalyptic number.

It is an amenable number.

70130761 is a deficient number, since it is larger than the sum of its proper divisors (1).

70130761 is an equidigital number, since it uses as much as digits as its factorization.

70130761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 70130761 is about 8374.4110837718. The cubic root of 70130761 is about 412.3849910166.

Adding to 70130761 its reverse (16703107), we get a palindrome (86833868).

The spelling of 70130761 in words is "seventy million, one hundred thirty thousand, seven hundred sixty-one".