523142345 has 16 divisors (see below), whose sum is σ = 693515520. Its totient is φ = 375648000.

The previous prime is 523142317. The next prime is 523142353. The reversal of 523142345 is 543241325.

It is a happy number.

It is not a de Polignac number, because 523142345 - 2¹⁸ = 522880201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55856 + ... + 64545.

It is an arithmetic number, because the mean of its divisors is an integer number (43344720).

Almost surely, 2^523142345 is an apocalyptic number.

523142345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

523142345 is a deficient number, since it is larger than the sum of its proper divisors (170373175).

523142345 is a wasteful number, since it uses less digits than its factorization.

523142345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120496.

The product of its digits is 14400, while the sum is 29.

The square root of 523142345 is about 22872.3051964598. The cubic root of 523142345 is about 805.7617084606.

The spelling of 523142345 in words is "five hundred twenty-three million, one hundred forty-two thousand, three hundred forty-five".