732139 has 4 divisors (see below), whose sum is σ = 775224. Its totient is φ = 689056.

The previous prime is 732133. The next prime is 732157. The reversal of 732139 is 931237.

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 732139 - 2¹¹ = 730091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (732133) 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, 21517 + ... + 21550.

It is an arithmetic number, because the mean of its divisors is an integer number (193806).

2⁷³²¹³⁹ is an apocalyptic number.

732139 is a deficient number, since it is larger than the sum of its proper divisors (43085).

732139 is a wasteful number, since it uses less digits than its factorization.

732139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43084.

The product of its digits is 1134, while the sum is 25.

The square root of 732139 is about 855.6512139885. The cubic root of 732139 is about 90.1289919894.

The spelling of 732139 in words is "seven hundred thirty-two thousand, one hundred thirty-nine".