70314581 has 2 divisors, whose sum is σ = 70314582. Its totient is φ = 70314580.

The previous prime is 70314577. The next prime is 70314593. The reversal of 70314581 is 18541307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40119556 + 30195025 = 6334^2 + 5495^2 .

It is a cyclic number.

It is not a de Polignac number, because 70314581 - 2² = 70314577 is a prime.

It is a super-2 number, since 2×70314581² = 9888280602411122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70314551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35157290 + 35157291.

It is an arithmetic number, because the mean of its divisors is an integer number (35157291).

Almost surely, 2^70314581 is an apocalyptic number.

It is an amenable number.

70314581 is a deficient number, since it is larger than the sum of its proper divisors (1).

70314581 is an equidigital number, since it uses as much as digits as its factorization.

70314581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 70314581 is about 8385.3790015717. The cubic root of 70314581 is about 412.7449779594.

Adding to 70314581 its reverse (18541307), we get a palindrome (88855888).

The spelling of 70314581 in words is "seventy million, three hundred fourteen thousand, five hundred eighty-one".