42970453 has 2 divisors, whose sum is σ = 42970454. Its totient is φ = 42970452.

The previous prime is 42970409. The next prime is 42970471. The reversal of 42970453 is 35407924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40666129 + 2304324 = 6377^2 + 1518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42970453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42970493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21485226 + 21485227.

It is an arithmetic number, because the mean of its divisors is an integer number (21485227).

Almost surely, 2^42970453 is an apocalyptic number.

It is an amenable number.

42970453 is a deficient number, since it is larger than the sum of its proper divisors (1).

42970453 is an equidigital number, since it uses as much as digits as its factorization.

42970453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 42970453 is about 6555.1851995195. The cubic root of 42970453 is about 350.2595435416.

The spelling of 42970453 in words is "forty-two million, nine hundred seventy thousand, four hundred fifty-three".