523145042 has 32 divisors (see below), whose sum is σ = 910725120. Its totient is φ = 220755600.

The previous prime is 523145041. The next prime is 523145047. The reversal of 523145042 is 240541325.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (523145041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267167 + ... + 269117.

It is an arithmetic number, because the mean of its divisors is an integer number (28460160).

Almost surely, 2^523145042 is an apocalyptic number.

523145042 is a deficient number, since it is larger than the sum of its proper divisors (387580078).

523145042 is a wasteful number, since it uses less digits than its factorization.

523145042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 523145042 is about 22872.3641541490. The cubic root of 523145042 is about 805.7630931288.

Adding to 523145042 its reverse (240541325), we get a palindrome (763686367).

The spelling of 523145042 in words is "five hundred twenty-three million, one hundred forty-five thousand, forty-two".