523142045 has 8 divisors (see below), whose sum is σ = 628048824. Its totient is φ = 418328064.

The previous prime is 523141961. The next prime is 523142051. The reversal of 523142045 is 540241325.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 89378116 + 433763929 = 9454^2 + 20827^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 523142045 - 2⁸ = 523141789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10124 + ... + 33893.

It is an arithmetic number, because the mean of its divisors is an integer number (78506103).

Almost surely, 2^523142045 is an apocalyptic number.

It is an amenable number.

523142045 is a deficient number, since it is larger than the sum of its proper divisors (104906779).

523142045 is a wasteful number, since it uses less digits than its factorization.

523142045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46399.

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

The square root of 523142045 is about 22872.2986383092. The cubic root of 523142045 is about 805.7615544372.

The spelling of 523142045 in words is "five hundred twenty-three million, one hundred forty-two thousand, forty-five".