70963129 has 2 divisors, whose sum is σ = 70963130. Its totient is φ = 70963128.

The previous prime is 70963127. The next prime is 70963133. The reversal of 70963129 is 92136907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51840000 + 19123129 = 7200^2 + 4373^2 .

It is an emirp because it is prime and its reverse (92136907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70963129 - 2¹ = 70963127 is a prime.

Together with 70963127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70963121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35481564 + 35481565.

It is an arithmetic number, because the mean of its divisors is an integer number (35481565).

Almost surely, 2^70963129 is an apocalyptic number.

It is an amenable number.

70963129 is a deficient number, since it is larger than the sum of its proper divisors (1).

70963129 is an equidigital number, since it uses as much as digits as its factorization.

70963129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 70963129 is about 8423.9615977282. The cubic root of 70963129 is about 414.0100836148.

Subtracting 70963129 from its reverse (92136907), we obtain a triangular number (21173778 = T₆₅₀₇).

The spelling of 70963129 in words is "seventy million, nine hundred sixty-three thousand, one hundred twenty-nine".