1690125 has 16 divisors (see below), whose sum is σ = 2812992. Its totient is φ = 901200.

The previous prime is 1690121. The next prime is 1690153. The reversal of 1690125 is 5210961.

1690125 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 1690125 - 2² = 1690121 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

1690125 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1690095 and 1690104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690121) 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, 1879 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (175812).

2^1690125 is an apocalyptic number.

1690125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1690125 is a deficient number, since it is larger than the sum of its proper divisors (1122867).

1690125 is an equidigital number, since it uses as much as digits as its factorization.

1690125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525 (or 4515 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1690125 is about 1300.0480760341. The cubic root of 1690125 is about 119.1167791791.

The spelling of 1690125 in words is "one million, six hundred ninety thousand, one hundred twenty-five".