501101401 has 4 divisors (see below), whose sum is σ = 530577972. Its totient is φ = 471624832.

The previous prime is 501101387. The next prime is 501101407. The reversal of 501101401 is 104101105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 377913600 + 123187801 = 19440^2 + 11099^2 .

It is a cyclic number.

It is not a de Polignac number, because 501101401 - 2²³ = 492712793 is a prime.

It is a super-2 number, since 2×501101401² = 502205228168325602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501101407) 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, 14738260 + ... + 14738293.

It is an arithmetic number, because the mean of its divisors is an integer number (132644493).

Almost surely, 2^501101401 is an apocalyptic number.

It is an amenable number.

501101401 is a deficient number, since it is larger than the sum of its proper divisors (29476571).

501101401 is a wasteful number, since it uses less digits than its factorization.

501101401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29476570.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 501101401 is about 22385.2943022869. The cubic root of 501101401 is about 794.2828869532.

Adding to 501101401 its reverse (104101105), we get a palindrome (605202506).

The spelling of 501101401 in words is "five hundred one million, one hundred one thousand, four hundred one".