1896145 has 8 divisors (see below), whose sum is σ = 2301480. Its totient is φ = 1499520.

The previous prime is 1896133. The next prime is 1896149. The reversal of 1896145 is 5416981.

It can be written as a sum of positive squares in 4 ways, for example, as 368449 + 1527696 = 607^2 + 1236^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1896145 - 2⁷ = 1896017 is a prime.

It is a super-2 number, since 2×1896145² = 7190731722050, which contains 22 as substring.

It is an Ulam number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1896145.

It is not an unprimeable number, because it can be changed into a prime (1896149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686 + ... + 2575.

It is an arithmetic number, because the mean of its divisors is an integer number (287685).

2^1896145 is an apocalyptic number.

It is an amenable number.

1896145 is a deficient number, since it is larger than the sum of its proper divisors (405335).

1896145 is an equidigital number, since it uses as much as digits as its factorization.

1896145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355.

The product of its digits is 8640, while the sum is 34.

The square root of 1896145 is about 1377.0058097190. The cubic root of 1896145 is about 123.7724103209.

The spelling of 1896145 in words is "one million, eight hundred ninety-six thousand, one hundred forty-five".