501545142 has 32 divisors (see below), whose sum is σ = 1273766400. Its totient is φ = 143298504.

The previous prime is 501545129. The next prime is 501545243. The reversal of 501545142 is 241545105.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663042 + ... + 663797.

It is an arithmetic number, because the mean of its divisors is an integer number (39805200).

Almost surely, 2^501545142 is an apocalyptic number.

501545142 is an abundant number, since it is smaller than the sum of its proper divisors (772221258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501545142 is a wasteful number, since it uses less digits than its factorization.

501545142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326857 (or 1326851 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 501545142 is about 22395.2035489745. The cubic root of 501545142 is about 794.5172719141.

The spelling of 501545142 in words is "five hundred one million, five hundred forty-five thousand, one hundred forty-two".