70261361 has 2 divisors, whose sum is σ = 70261362. Its totient is φ = 70261360.

The previous prime is 70261351. The next prime is 70261379. The reversal of 70261361 is 16316207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44302336 + 25959025 = 6656^2 + 5095^2 .

It is an emirp because it is prime and its reverse (16316207) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70261361 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70261361.

It is not a weakly prime, because it can be changed into another prime (70261351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35130680 + 35130681.

It is an arithmetic number, because the mean of its divisors is an integer number (35130681).

Almost surely, 2^70261361 is an apocalyptic number.

It is an amenable number.

70261361 is a deficient number, since it is larger than the sum of its proper divisors (1).

70261361 is an equidigital number, since it uses as much as digits as its factorization.

70261361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 70261361 is about 8382.2050201603. The cubic root of 70261361 is about 412.6408182829.

Adding to 70261361 its reverse (16316207), we get a palindrome (86577568).

The spelling of 70261361 in words is "seventy million, two hundred sixty-one thousand, three hundred sixty-one".