285373453 has 2 divisors, whose sum is σ = 285373454. Its totient is φ = 285373452.

The previous prime is 285373423. The next prime is 285373493. The reversal of 285373453 is 354373582.

It is an a-pointer prime, because the next prime (285373493) can be obtained adding 285373453 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285373449 + 4 = 16893^2 + 2^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285373453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285373423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142686726 + 142686727.

It is an arithmetic number, because the mean of its divisors is an integer number (142686727).

Almost surely, 2^285373453 is an apocalyptic number.

It is an amenable number.

285373453 is a deficient number, since it is larger than the sum of its proper divisors (1).

285373453 is an equidigital number, since it uses as much as digits as its factorization.

285373453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 40.

The square root of 285373453 is about 16893.0001183922. Note that the first 3 decimals coincide. The cubic root of 285373453 is about 658.3717538794.

The spelling of 285373453 in words is "two hundred eighty-five million, three hundred seventy-three thousand, four hundred fifty-three".