501122157 has 8 divisors (see below), whose sum is σ = 668543520. Its totient is φ = 333891120.

The previous prime is 501122123. The next prime is 501122173. The reversal of 501122157 is 751221105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 501122157 - 2¹⁸ = 500860013 is a prime.

It is a super-2 number, since 2×501122157² = 502246832472665298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501122197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41319 + ... + 52052.

It is an arithmetic number, because the mean of its divisors is an integer number (83567940).

Almost surely, 2^501122157 is an apocalyptic number.

It is an amenable number.

501122157 is a deficient number, since it is larger than the sum of its proper divisors (167421363).

501122157 is a wasteful number, since it uses less digits than its factorization.

501122157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95163.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 501122157 is about 22385.7579054183. The cubic root of 501122157 is about 794.2938534016.

The spelling of 501122157 in words is "five hundred one million, one hundred twenty-two thousand, one hundred fifty-seven".