1924139 has 8 divisors (see below), whose sum is σ = 2270208. Its totient is φ = 1595880.

The previous prime is 1924129. The next prime is 1924141. The reversal of 1924139 is 9314291.

It is a happy number.

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

It is not a de Polignac number, because 1924139 - 2¹² = 1920043 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 (1924129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4217 + ... + 4650.

It is an arithmetic number, because the mean of its divisors is an integer number (283776).

2^1924139 is an apocalyptic number.

1924139 is a deficient number, since it is larger than the sum of its proper divisors (346069).

1924139 is an equidigital number, since it uses as much as digits as its factorization.

1924139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8905.

The product of its digits is 1944, while the sum is 29.

The square root of 1924139 is about 1387.1333749860. The cubic root of 1924139 is about 124.3785474944.

The spelling of 1924139 in words is "one million, nine hundred twenty-four thousand, one hundred thirty-nine".