285124649 has 2 divisors, whose sum is σ = 285124650. Its totient is φ = 285124648.

The previous prime is 285124603. The next prime is 285124657. The reversal of 285124649 is 946421582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156075049 + 129049600 = 12493^2 + 11360^2 .

It is a cyclic number.

It is not a de Polignac number, because 285124649 - 2¹⁶ = 285059113 is a prime.

It is not a weakly prime, because it can be changed into another prime (285114649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142562324 + 142562325.

It is an arithmetic number, because the mean of its divisors is an integer number (142562325).

Almost surely, 2^285124649 is an apocalyptic number.

It is an amenable number.

285124649 is a deficient number, since it is larger than the sum of its proper divisors (1).

285124649 is an equidigital number, since it uses as much as digits as its factorization.

285124649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 41.

The square root of 285124649 is about 16885.6343973213. The cubic root of 285124649 is about 658.1803635544.

The spelling of 285124649 in words is "two hundred eighty-five million, one hundred twenty-four thousand, six hundred forty-nine".