531379 has 4 divisors (see below), whose sum is σ = 532840. Its totient is φ = 529920.

The previous prime is 531359. The next prime is 531383. The reversal of 531379 is 973135.

531379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 531379 - 2⁵ = 531347 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (531359) 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, 307 + ... + 1075.

It is an arithmetic number, because the mean of its divisors is an integer number (133210).

531379 is a Friedman number, since it can be written as 9*((3*3)^5-7)+1, using all its digits and the basic arithmetic operations.

2⁵³¹³⁷⁹ is an apocalyptic number.

531379 is a deficient number, since it is larger than the sum of its proper divisors (1461).

531379 is an equidigital number, since it uses as much as digits as its factorization.

531379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460.

The product of its digits is 2835, while the sum is 28.

The square root of 531379 is about 728.9574747542. The cubic root of 531379 is about 80.9968499512.

The spelling of 531379 in words is "five hundred thirty-one thousand, three hundred seventy-nine".