531401 has 8 divisors (see below), whose sum is σ = 586824. Its totient is φ = 478080.

The previous prime is 531383. The next prime is 531457. The reversal of 531401 is 104135.

It can be written as a sum of positive squares in 4 ways, for example, as 7225 + 524176 = 85^2 + 724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531401 - 2⁶ = 531337 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 531401.

It is not an unprimeable number, because it can be changed into a prime (531481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (73353).

2⁵³¹⁴⁰¹ is an apocalyptic number.

It is an amenable number.

531401 is a deficient number, since it is larger than the sum of its proper divisors (55423).

531401 is a wasteful number, since it uses less digits than its factorization.

531401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 531401 is about 728.9725646415. The cubic root of 531401 is about 80.9979677385.

Adding to 531401 its reverse (104135), we get a palindrome (635536).

The spelling of 531401 in words is "five hundred thirty-one thousand, four hundred one".