5785139 has 4 divisors (see below), whose sum is σ = 6089640. Its totient is φ = 5480640.

The previous prime is 5785103. The next prime is 5785147. The reversal of 5785139 is 9315875.

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

It is a cyclic number.

It is not a de Polignac number, because 5785139 - 2¹⁶ = 5719603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5784139) 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, 152222 + ... + 152259.

It is an arithmetic number, because the mean of its divisors is an integer number (1522410).

Almost surely, 2^5785139 is an apocalyptic number.

5785139 is a deficient number, since it is larger than the sum of its proper divisors (304501).

5785139 is a wasteful number, since it uses less digits than its factorization.

5785139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304500.

The product of its digits is 37800, while the sum is 38.

The square root of 5785139 is about 2405.2315896811. The cubic root of 5785139 is about 179.5165938782.

Subtracting from 5785139 its sum of digits (38), we obtain a triangular number (5785101 = T₃₄₀₁).

The spelling of 5785139 in words is "five million, seven hundred eighty-five thousand, one hundred thirty-nine".