1933145 has 4 divisors (see below), whose sum is σ = 2319780. Its totient is φ = 1546512.

The previous prime is 1933133. The next prime is 1933147. The reversal of 1933145 is 5413391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 524176 + 1408969 = 724^2 + 1187^2 .

It is a cyclic number.

It is not a de Polignac number, because 1933145 - 2¹⁰ = 1932121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1933147) 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, 193310 + ... + 193319.

It is an arithmetic number, because the mean of its divisors is an integer number (579945).

2^1933145 is an apocalyptic number.

It is an amenable number.

1933145 is a deficient number, since it is larger than the sum of its proper divisors (386635).

1933145 is an equidigital number, since it uses as much as digits as its factorization.

1933145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386634.

The product of its digits is 1620, while the sum is 26.

The square root of 1933145 is about 1390.3758484669. The cubic root of 1933145 is about 124.5722982387.

The spelling of 1933145 in words is "one million, nine hundred thirty-three thousand, one hundred forty-five".