506121151 has 4 divisors (see below), whose sum is σ = 508090752. Its totient is φ = 504151552.

The previous prime is 506121103. The next prime is 506121167. The reversal of 506121151 is 151121605.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 506121151 - 2⁹ = 506120639 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 (506128151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984415 + ... + 984928.

It is an arithmetic number, because the mean of its divisors is an integer number (127022688).

Almost surely, 2^506121151 is an apocalyptic number.

506121151 is a deficient number, since it is larger than the sum of its proper divisors (1969601).

506121151 is a wasteful number, since it uses less digits than its factorization.

506121151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969600.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 506121151 is about 22497.1365066757. The cubic root of 506121151 is about 796.9263051033.

Adding to 506121151 its reverse (151121605), we get a palindrome (657242756).

The spelling of 506121151 in words is "five hundred six million, one hundred twenty-one thousand, one hundred fifty-one".