1142355423 has 16 divisors (see below), whose sum is σ = 1685014272. Its totient is φ = 682584000.

The previous prime is 1142355419. The next prime is 1142355437. The reversal of 1142355423 is 3245532411.

It is not a de Polignac number, because 1142355423 - 2² = 1142355419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142355023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241438 + ... + 246123.

It is an arithmetic number, because the mean of its divisors is an integer number (105313392).

Almost surely, 2^1142355423 is an apocalyptic number.

1142355423 is a deficient number, since it is larger than the sum of its proper divisors (542658849).

1142355423 is a wasteful number, since it uses less digits than its factorization.

1142355423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487646.

The product of its digits is 14400, while the sum is 30.

The square root of 1142355423 is about 33798.7488377898. The cubic root of 1142355423 is about 1045.3628992272.

Adding to 1142355423 its reverse (3245532411), we get a palindrome (4387887834).

The spelling of 1142355423 in words is "one billion, one hundred forty-two million, three hundred fifty-five thousand, four hundred twenty-three".