287900125 has 16 divisors (see below), whose sum is σ = 359783424. Its totient is φ = 230010000.

The previous prime is 287900113. The next prime is 287900143. The reversal of 287900125 is 521009782.

It is not a de Polignac number, because 287900125 - 2⁹ = 287899613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152940 + ... + 154810.

It is an arithmetic number, because the mean of its divisors is an integer number (22486464).

Almost surely, 2^287900125 is an apocalyptic number.

287900125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287900125 is a deficient number, since it is larger than the sum of its proper divisors (71883299).

287900125 is a wasteful number, since it uses less digits than its factorization.

287900125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117 (or 3107 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 287900125 is about 16967.6198979114. The cubic root of 287900125 is about 660.3091029936.

The spelling of 287900125 in words is "two hundred eighty-seven million, nine hundred thousand, one hundred twenty-five".