70150081 has 2 divisors, whose sum is σ = 70150082. Its totient is φ = 70150080.

The previous prime is 70150079. The next prime is 70150097. The reversal of 70150081 is 18005107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68145025 + 2005056 = 8255^2 + 1416^2 .

It is a cyclic number.

It is not a de Polignac number, because 70150081 - 2¹ = 70150079 is a prime.

It is a super-2 number, since 2×70150081² = 9842067728613122, which contains 22 as substring.

Together with 70150079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70150001) 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, 35075040 + 35075041.

It is an arithmetic number, because the mean of its divisors is an integer number (35075041).

Almost surely, 2^70150081 is an apocalyptic number.

It is an amenable number.

70150081 is a deficient number, since it is larger than the sum of its proper divisors (1).

70150081 is an equidigital number, since it uses as much as digits as its factorization.

70150081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 70150081 is about 8375.5645182877. The cubic root of 70150081 is about 412.4228562197.

Adding to 70150081 its reverse (18005107), we get a palindrome (88155188).

The spelling of 70150081 in words is "seventy million, one hundred fifty thousand, eighty-one".