1896121 has 4 divisors (see below), whose sum is σ = 1936512. Its totient is φ = 1855732.

The previous prime is 1896109. The next prime is 1896133. The reversal of 1896121 is 1216981.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1216981 = 953 ⋅1277.

It is an interprime number because it is at equal distance from previous prime (1896109) and next prime (1896133).

It is a cyclic number.

It is not a de Polignac number, because 1896121 - 2⁹ = 1895609 is a prime.

It is a super-3 number, since 3×1896121³ = 20451228412463338683, which contains 333 as substring.

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

It is a Duffinian number.

1896121 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1896121.

It is not an unprimeable number, because it can be changed into a prime (1896101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20125 + ... + 20218.

It is an arithmetic number, because the mean of its divisors is an integer number (484128).

2^1896121 is an apocalyptic number.

It is an amenable number.

1896121 is a deficient number, since it is larger than the sum of its proper divisors (40391).

1896121 is an equidigital number, since it uses as much as digits as its factorization.

1896121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40390.

The product of its digits is 864, while the sum is 28.

The square root of 1896121 is about 1376.9970951313. The cubic root of 1896121 is about 123.7718881122.

The spelling of 1896121 in words is "one million, eight hundred ninety-six thousand, one hundred twenty-one".