1893139 has 8 divisors (see below), whose sum is σ = 1971072. Its totient is φ = 1816320.

The previous prime is 1893131. The next prime is 1893163. The reversal of 1893139 is 9313981.

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

It is a cyclic number.

It is not a de Polignac number, because 1893139 - 2³ = 1893131 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1893131) 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 7 ways as a sum of consecutive naturals, for example, 5187 + ... + 5539.

It is an arithmetic number, because the mean of its divisors is an integer number (246384).

2^1893139 is an apocalyptic number.

1893139 is a deficient number, since it is larger than the sum of its proper divisors (77933).

1893139 is a wasteful number, since it uses less digits than its factorization.

1893139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its digits is 5832, while the sum is 34.

The square root of 1893139 is about 1375.9138781188. The cubic root of 1893139 is about 123.7069693603.

The spelling of 1893139 in words is "one million, eight hundred ninety-three thousand, one hundred thirty-nine".