1142523 has 24 divisors (see below), whose sum is σ = 1754688. Its totient is φ = 715392.

The previous prime is 1142509. The next prime is 1142539. The reversal of 1142523 is 3252411.

1142523 is a `hidden beast` number, since 1 + 142 + 523 = 666.

It is not a de Polignac number, because 1142523 - 2⁴ = 1142507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142496 and 1142505.

It is not an unprimeable number, because it can be changed into a prime (1142503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15615 + ... + 15687.

It is an arithmetic number, because the mean of its divisors is an integer number (73112).

2^1142523 is an apocalyptic number.

1142523 is a deficient number, since it is larger than the sum of its proper divisors (612165).

1142523 is a wasteful number, since it uses less digits than its factorization.

1142523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 160 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1142523 is about 1068.8886752137. Note that the first 3 decimals coincide. The cubic root of 1142523 is about 104.5414012979.

Adding to 1142523 its reverse (3252411), we get a palindrome (4394934).

The spelling of 1142523 in words is "one million, one hundred forty-two thousand, five hundred twenty-three".