1945339 has 4 divisors (see below), whose sum is σ = 2122200. Its totient is φ = 1768480.

The previous prime is 1945337. The next prime is 1945369. The reversal of 1945339 is 9335491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9335491 = 11 ⋅848681.

It is a cyclic number.

It is not a de Polignac number, because 1945339 - 2¹ = 1945337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1945331) 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, 88414 + ... + 88435.

It is an arithmetic number, because the mean of its divisors is an integer number (530550).

2^1945339 is an apocalyptic number.

1945339 is a deficient number, since it is larger than the sum of its proper divisors (176861).

1945339 is a wasteful number, since it uses less digits than its factorization.

1945339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176860.

The product of its digits is 14580, while the sum is 34.

The square root of 1945339 is about 1394.7541001911. The cubic root of 1945339 is about 124.8336774593.

The spelling of 1945339 in words is "one million, nine hundred forty-five thousand, three hundred thirty-nine".