70309453 has 2 divisors, whose sum is σ = 70309454. Its totient is φ = 70309452.

The previous prime is 70309451. The next prime is 70309483. The reversal of 70309453 is 35490307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70257924 + 51529 = 8382^2 + 227^2 .

It is a cyclic number.

It is not a de Polignac number, because 70309453 - 2¹ = 70309451 is a prime.

Together with 70309451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70309451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35154726 + 35154727.

It is an arithmetic number, because the mean of its divisors is an integer number (35154727).

Almost surely, 2^70309453 is an apocalyptic number.

It is an amenable number.

70309453 is a deficient number, since it is larger than the sum of its proper divisors (1).

70309453 is an equidigital number, since it uses as much as digits as its factorization.

70309453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 70309453 is about 8385.0732256791. The cubic root of 70309453 is about 412.7349439680.

The spelling of 70309453 in words is "seventy million, three hundred nine thousand, four hundred fifty-three".