501641431 has 8 divisors (see below), whose sum is σ = 523676160. Its totient is φ = 479625432.

The previous prime is 501641383. The next prime is 501641471. The reversal of 501641431 is 134146105.

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 501641431 - 2¹⁵ = 501608663 is a prime.

It is a super-2 number, since 2×501641431² = 503288250591455522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501641396 and 501641405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501641471) 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, 103030 + ... + 107788.

It is an arithmetic number, because the mean of its divisors is an integer number (65459520).

Almost surely, 2^501641431 is an apocalyptic number.

501641431 is a deficient number, since it is larger than the sum of its proper divisors (22034729).

501641431 is a wasteful number, since it uses less digits than its factorization.

501641431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9365.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 501641431 is about 22397.3532141635. The cubic root of 501641431 is about 794.5681137173.

Adding to 501641431 its reverse (134146105), we get a palindrome (635787536).

The spelling of 501641431 in words is "five hundred one million, six hundred forty-one thousand, four hundred thirty-one".