1700121 has 4 divisors (see below), whose sum is σ = 2266832. Its totient is φ = 1133412.

The previous prime is 1700107. The next prime is 1700129. The reversal of 1700121 is 1210071.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1700121 - 2⁷ = 1699993 is a prime.

It is a super-2 number, since 2×1700121² = 5780822829282, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1700097 and 1700106.

It is not an unprimeable number, because it can be changed into a prime (1700129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283351 + ... + 283356.

It is an arithmetic number, because the mean of its divisors is an integer number (566708).

2^1700121 is an apocalyptic number.

It is an amenable number.

1700121 is a deficient number, since it is larger than the sum of its proper divisors (566711).

1700121 is an equidigital number, since it uses as much as digits as its factorization.

1700121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566710.

The product of its (nonzero) digits is 14, while the sum is 12.

The square root of 1700121 is about 1303.8868815967. The cubic root of 1700121 is about 119.3511507229.

Adding to 1700121 its reverse (1210071), we get a palindrome (2910192).

The spelling of 1700121 in words is "one million, seven hundred thousand, one hundred twenty-one".