503143145 has 8 divisors (see below), whose sum is σ = 605922120. Its totient is φ = 401080960.

The previous prime is 503143099. The next prime is 503143159. The reversal of 503143145 is 541341305.

It can be written as a sum of positive squares in 4 ways, for example, as 134003776 + 369139369 = 11576^2 + 19213^2 .

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

It is not a de Polignac number, because 503143145 - 2⁸ = 503142889 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177650 + ... + 180459.

It is an arithmetic number, because the mean of its divisors is an integer number (75740265).

Almost surely, 2^503143145 is an apocalyptic number.

It is an amenable number.

503143145 is a deficient number, since it is larger than the sum of its proper divisors (102778975).

503143145 is a wasteful number, since it uses less digits than its factorization.

503143145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358395.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 503143145 is about 22430.8525250379. The cubic root of 503143145 is about 795.3601969958.

The spelling of 503143145 in words is "five hundred three million, one hundred forty-three thousand, one hundred forty-five".