523154493 has 12 divisors (see below), whose sum is σ = 795439840. Its totient is φ = 330413256.

The previous prime is 523154459. The next prime is 523154521. The reversal of 523154493 is 394451325.

523154493 is a `hidden beast` number, since 5 + 23 + 1 + 544 + 93 = 666.

It is not a de Polignac number, because 523154493 - 2⁸ = 523154237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523153493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1529521 + ... + 1529862.

Almost surely, 2^523154493 is an apocalyptic number.

It is an amenable number.

523154493 is a deficient number, since it is larger than the sum of its proper divisors (272285347).

523154493 is a wasteful number, since it uses less digits than its factorization.

523154493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059408 (or 3059405 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 523154493 is about 22872.5707562574. The cubic root of 523154493 is about 805.7679453339.

The spelling of 523154493 in words is "five hundred twenty-three million, one hundred fifty-four thousand, four hundred ninety-three".