1897125 has 16 divisors (see below), whose sum is σ = 3157440. Its totient is φ = 1011600.

The previous prime is 1897121. The next prime is 1897127. The reversal of 1897125 is 5217981.

It is not a de Polignac number, because 1897125 - 2² = 1897121 is a prime.

1897125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1897121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2155 + ... + 2904.

It is an arithmetic number, because the mean of its divisors is an integer number (197340).

2^1897125 is an apocalyptic number.

1897125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1897125 is a deficient number, since it is larger than the sum of its proper divisors (1260315).

1897125 is an equidigital number, since it uses as much as digits as its factorization.

1897125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077 (or 5067 counting only the distinct ones).

The product of its digits is 5040, while the sum is 33.

The square root of 1897125 is about 1377.3616082932. The cubic root of 1897125 is about 123.7937300813.

The spelling of 1897125 in words is "one million, eight hundred ninety-seven thousand, one hundred twenty-five".