845157853 has 2 divisors, whose sum is σ = 845157854. Its totient is φ = 845157852.

The previous prime is 845157787. The next prime is 845157869. The reversal of 845157853 is 358751548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 844599844 + 558009 = 29062^2 + 747^2 .

It is a cyclic number.

It is not a de Polignac number, because 845157853 - 2²⁹ = 308286941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845157553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422578926 + 422578927.

It is an arithmetic number, because the mean of its divisors is an integer number (422578927).

Almost surely, 2^845157853 is an apocalyptic number.

It is an amenable number.

845157853 is a deficient number, since it is larger than the sum of its proper divisors (1).

845157853 is an equidigital number, since it uses as much as digits as its factorization.

845157853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672000, while the sum is 46.

The square root of 845157853 is about 29071.5987348477. The cubic root of 845157853 is about 945.4660608981.

The spelling of 845157853 in words is "eight hundred forty-five million, one hundred fifty-seven thousand, eight hundred fifty-three".