501172141 has 4 divisors (see below), whose sum is σ = 514717372. Its totient is φ = 487626912.

The previous prime is 501172117. The next prime is 501172153. The reversal of 501172141 is 141271105.

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 339628041 + 161544100 = 18429^2 + 12710^2 .

It is a cyclic number.

It is not a de Polignac number, because 501172141 - 2⁵ = 501172109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501172541) 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, 6772560 + ... + 6772633.

It is an arithmetic number, because the mean of its divisors is an integer number (128679343).

Almost surely, 2^501172141 is an apocalyptic number.

It is an amenable number.

501172141 is a deficient number, since it is larger than the sum of its proper divisors (13545231).

501172141 is a wasteful number, since it uses less digits than its factorization.

501172141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13545230.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 501172141 is about 22386.8743016974. The cubic root of 501172141 is about 794.3202612435.

The spelling of 501172141 in words is "five hundred one million, one hundred seventy-two thousand, one hundred forty-one".