70262081 has 2 divisors, whose sum is σ = 70262082. Its totient is φ = 70262080.

The previous prime is 70262063. The next prime is 70262107. The reversal of 70262081 is 18026207.

It is an a-pointer prime, because the next prime (70262107) can be obtained adding 70262081 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67650625 + 2611456 = 8225^2 + 1616^2 .

It is a cyclic number.

It is not a de Polignac number, because 70262081 - 2¹⁴ = 70245697 is a prime.

It is a super-2 number, since 2×70262081² = 9873520052901122, which contains 22 as substring.

It is a Chen prime.

It is equal to p_4132574 and since 70262081 and 4132574 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70262081.

It is not a weakly prime, because it can be changed into another prime (70262021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35131040 + 35131041.

It is an arithmetic number, because the mean of its divisors is an integer number (35131041).

Almost surely, 2^70262081 is an apocalyptic number.

70262081 is the 4481-st centered heptagonal number.

It is an amenable number.

70262081 is a deficient number, since it is larger than the sum of its proper divisors (1).

70262081 is an equidigital number, since it uses as much as digits as its factorization.

70262081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 70262081 is about 8382.2479681766. The cubic root of 70262081 is about 412.6422277839.

Adding to 70262081 its reverse (18026207), we get a palindrome (88288288).

The spelling of 70262081 in words is "seventy million, two hundred sixty-two thousand, eighty-one".