531235401 has 8 divisors (see below), whose sum is σ = 725589984. Its totient is φ = 345518880.

The previous prime is 531235391. The next prime is 531235403. The reversal of 531235401 is 104532135.

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

It is not a de Polignac number, because 531235401 - 2⁶ = 531235337 is a prime.

It is a super-2 number, since 2×531235401² = 564422102551261602, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (531235403) 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 7 ways as a sum of consecutive naturals, for example, 2159371 + ... + 2159616.

It is an arithmetic number, because the mean of its divisors is an integer number (90698748).

Almost surely, 2^531235401 is an apocalyptic number.

It is an amenable number.

531235401 is a deficient number, since it is larger than the sum of its proper divisors (194354583).

531235401 is a wasteful number, since it uses less digits than its factorization.

531235401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319031.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 531235401 is about 23048.5444442811. The cubic root of 531235401 is about 809.8955314133.

Adding to 531235401 its reverse (104532135), we get a palindrome (635767536).

The spelling of 531235401 in words is "five hundred thirty-one million, two hundred thirty-five thousand, four hundred one".