1523438343 has 12 divisors (see below), whose sum is σ = 2514882448. Its totient is φ = 870536160.

The previous prime is 1523438311. The next prime is 1523438437. The reversal of 1523438343 is 3438343251.

1523438343 is a `hidden beast` number, since 1 + 5 + 234 + 383 + 43 = 666.

It is not a de Polignac number, because 1523438343 - 2⁵ = 1523438311 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 1523438298 and 1523438307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523438303) 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 11 ways as a sum of consecutive naturals, for example, 12090718 + ... + 12090843.

Almost surely, 2^1523438343 is an apocalyptic number.

1523438343 is a deficient number, since it is larger than the sum of its proper divisors (991444105).

1523438343 is a wasteful number, since it uses less digits than its factorization.

1523438343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24181574 (or 24181571 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 1523438343 is about 39031.2482890312. The cubic root of 1523438343 is about 1150.6457225525.

The spelling of 1523438343 in words is "one billion, five hundred twenty-three million, four hundred thirty-eight thousand, three hundred forty-three".