652139 has 4 divisors (see below), whose sum is σ = 654024. Its totient is φ = 650256.

The previous prime is 652121. The next prime is 652153. The reversal of 652139 is 931256.

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 652139 - 2¹⁶ = 586603 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 652139.

It is not an unprimeable number, because it can be changed into a prime (652189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (163506).

2⁶⁵²¹³⁹ is an apocalyptic number.

652139 is a deficient number, since it is larger than the sum of its proper divisors (1885).

652139 is a wasteful number, since it uses less digits than its factorization.

652139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884.

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

The square root of 652139 is about 807.5512367646. The cubic root of 652139 is about 86.7188262613.

The spelling of 652139 in words is "six hundred fifty-two thousand, one hundred thirty-nine".