523040145 has 16 divisors (see below), whose sum is σ = 838045440. Its totient is φ = 278561024.

The previous prime is 523040129. The next prime is 523040183. The reversal of 523040145 is 541040325.

It is a cyclic number.

It is not a de Polignac number, because 523040145 - 2⁴ = 523040129 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 13464 + ... + 35033.

It is an arithmetic number, because the mean of its divisors is an integer number (52377840).

Almost surely, 2^523040145 is an apocalyptic number.

It is an amenable number.

523040145 is a deficient number, since it is larger than the sum of its proper divisors (315005295).

523040145 is a wasteful number, since it uses less digits than its factorization.

523040145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49224.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 523040145 is about 22870.0709443587. The cubic root of 523040145 is about 805.7092343998.

The spelling of 523040145 in words is "five hundred twenty-three million, forty thousand, one hundred forty-five".