70115761 has 2 divisors, whose sum is σ = 70115762. Its totient is φ = 70115760.

The previous prime is 70115743. The next prime is 70115783. The reversal of 70115761 is 16751107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68807025 + 1308736 = 8295^2 + 1144^2 .

It is a cyclic number.

It is not a de Polignac number, because 70115761 - 2²¹ = 68018609 is a prime.

It is not a weakly prime, because it can be changed into another prime (70115711) 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, 35057880 + 35057881.

It is an arithmetic number, because the mean of its divisors is an integer number (35057881).

Almost surely, 2^70115761 is an apocalyptic number.

It is an amenable number.

70115761 is a deficient number, since it is larger than the sum of its proper divisors (1).

70115761 is an equidigital number, since it uses as much as digits as its factorization.

70115761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 70115761 is about 8373.5154505142. The cubic root of 70115761 is about 412.3555877712.

Adding to 70115761 its reverse (16751107), we get a palindrome (86866868).

It can be divided in two parts, 70115 and 761, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 70115761 in words is "seventy million, one hundred fifteen thousand, seven hundred sixty-one".