287235125 has 8 divisors (see below), whose sum is σ = 358469592. Its totient is φ = 229788000.

The previous prime is 287235121. The next prime is 287235133. The reversal of 287235125 is 521532782.

It can be written as a sum of positive squares in 4 ways, for example, as 79673476 + 207561649 = 8926^2 + 14407^2 .

It is not a de Polignac number, because 287235125 - 2² = 287235121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287235121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1148816 + ... + 1149065.

It is an arithmetic number, because the mean of its divisors is an integer number (44808699).

Almost surely, 2^287235125 is an apocalyptic number.

287235125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287235125 is a deficient number, since it is larger than the sum of its proper divisors (71234467).

287235125 is an equidigital number, since it uses as much as digits as its factorization.

287235125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297896 (or 2297886 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 287235125 is about 16948.0124203400. The cubic root of 287235125 is about 659.8003107238.

The spelling of 287235125 in words is "two hundred eighty-seven million, two hundred thirty-five thousand, one hundred twenty-five".