502661143 has 4 divisors (see below), whose sum is σ = 507638088. Its totient is φ = 497684200.

The previous prime is 502661129. The next prime is 502661191. The reversal of 502661143 is 341166205.

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 502661143 - 2⁵ = 502661111 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 (502661123) 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, 2488321 + ... + 2488522.

It is an arithmetic number, because the mean of its divisors is an integer number (126909522).

Almost surely, 2^502661143 is an apocalyptic number.

502661143 is a deficient number, since it is larger than the sum of its proper divisors (4976945).

502661143 is a wasteful number, since it uses less digits than its factorization.

502661143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4976944.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 502661143 is about 22420.1057758433. The cubic root of 502661143 is about 795.1061356393.

The spelling of 502661143 in words is "five hundred two million, six hundred sixty-one thousand, one hundred forty-three".