501000142 has 4 divisors (see below), whose sum is σ = 751500216. Its totient is φ = 250500070.

The previous prime is 501000131. The next prime is 501000161. The reversal of 501000142 is 241000105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241000105 = 5 ⋅48200021.

It is a super-2 number, since 2×501000142² = 502002284568040328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 125250034 + ... + 125250037.

It is an arithmetic number, because the mean of its divisors is an integer number (187875054).

Almost surely, 2^501000142 is an apocalyptic number.

501000142 is a deficient number, since it is larger than the sum of its proper divisors (250500074).

501000142 is a wasteful number, since it uses less digits than its factorization.

501000142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250500073.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 501000142 is about 22383.0324576452. The cubic root of 501000142 is about 794.2293823407.

Adding to 501000142 its reverse (241000105), we get a palindrome (742000247).

The spelling of 501000142 in words is "five hundred one million, one hundred forty-two", and thus it is an aban number.