501430701 has 4 divisors (see below), whose sum is σ = 668574272. Its totient is φ = 334287132.

The previous prime is 501430669. The next prime is 501430703. The reversal of 501430701 is 107034105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 501430701 - 2⁵ = 501430669 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501430703) 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, 83571781 + ... + 83571786.

It is an arithmetic number, because the mean of its divisors is an integer number (167143568).

Almost surely, 2^501430701 is an apocalyptic number.

It is an amenable number.

501430701 is a deficient number, since it is larger than the sum of its proper divisors (167143571).

501430701 is a wasteful number, since it uses less digits than its factorization.

501430701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167143570.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 501430701 is about 22392.6483694984. The cubic root of 501430701 is about 794.4568371629.

Adding to 501430701 its reverse (107034105), we get a palindrome (608464806).

The spelling of 501430701 in words is "five hundred one million, four hundred thirty thousand, seven hundred one".