1660125 has 32 divisors (see below), whose sum is σ = 2920320. Its totient is φ = 835200.

The previous prime is 1660121. The next prime is 1660133. The reversal of 1660125 is 5210661.

It is a happy number.

It is not a de Polignac number, because 1660125 - 2² = 1660121 is a prime.

1660125 is a lucky number.

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7009 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (91260).

2^1660125 is an apocalyptic number.

1660125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1660125 is a deficient number, since it is larger than the sum of its proper divisors (1260195).

1660125 is a wasteful number, since it uses less digits than its factorization.

1660125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1660125 is about 1288.4583811672. The cubic root of 1660125 is about 118.4077866881.

Adding to 1660125 its reverse (5210661), we get a palindrome (6870786).

The spelling of 1660125 in words is "one million, six hundred sixty thousand, one hundred twenty-five".