504155145 has 32 divisors (see below), whose sum is σ = 919804032. Its totient is φ = 233597952.

The previous prime is 504155143. The next prime is 504155149. The reversal of 504155145 is 541551405.

It is not a de Polignac number, because 504155145 - 2¹ = 504155143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (504155143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72727 + ... + 79356.

It is an arithmetic number, because the mean of its divisors is an integer number (28743876).

Almost surely, 2^504155145 is an apocalyptic number.

It is an amenable number.

504155145 is a deficient number, since it is larger than the sum of its proper divisors (415648887).

504155145 is a wasteful number, since it uses less digits than its factorization.

504155145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152121.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 504155145 is about 22453.3994085528. The cubic root of 504155145 is about 795.8930907192.

The spelling of 504155145 in words is "five hundred four million, one hundred fifty-five thousand, one hundred forty-five".