71454853 has 2 divisors, whose sum is σ = 71454854. Its totient is φ = 71454852.

The previous prime is 71454829. The next prime is 71454871. The reversal of 71454853 is 35845417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71267364 + 187489 = 8442^2 + 433^2 .

It is an emirp because it is prime and its reverse (35845417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71454853 - 2⁵ = 71454821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71454883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35727426 + 35727427.

It is an arithmetic number, because the mean of its divisors is an integer number (35727427).

Almost surely, 2^71454853 is an apocalyptic number.

It is an amenable number.

71454853 is a deficient number, since it is larger than the sum of its proper divisors (1).

71454853 is an equidigital number, since it uses as much as digits as its factorization.

71454853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 37.

The square root of 71454853 is about 8453.0972430228. The cubic root of 71454853 is about 414.9641484488.

The spelling of 71454853 in words is "seventy-one million, four hundred fifty-four thousand, eight hundred fifty-three".