70213133 has 2 divisors, whose sum is σ = 70213134. Its totient is φ = 70213132.

The previous prime is 70213123. The next prime is 70213139. The reversal of 70213133 is 33131207.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58400164 + 11812969 = 7642^2 + 3437^2 .

It is a cyclic number.

It is not a de Polignac number, because 70213133 - 2¹² = 70209037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70213139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35106566 + 35106567.

It is an arithmetic number, because the mean of its divisors is an integer number (35106567).

Almost surely, 2^70213133 is an apocalyptic number.

It is an amenable number.

70213133 is a deficient number, since it is larger than the sum of its proper divisors (1).

70213133 is an equidigital number, since it uses as much as digits as its factorization.

70213133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 70213133 is about 8379.3277176633. The cubic root of 70213133 is about 412.5463832752.

The spelling of 70213133 in words is "seventy million, two hundred thirteen thousand, one hundred thirty-three".