1142344505 has 16 divisors (see below), whose sum is σ = 1449825600. Its totient is φ = 861658560.

The previous prime is 1142344471. The next prime is 1142344531. The reversal of 1142344505 is 5054432411.

It is not a de Polignac number, because 1142344505 - 2¹⁰ = 1142343481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8450 + ... + 48539.

It is an arithmetic number, because the mean of its divisors is an integer number (90614100).

Almost surely, 2^1142344505 is an apocalyptic number.

It is an amenable number.

1142344505 is a deficient number, since it is larger than the sum of its proper divisors (307481095).

1142344505 is a wasteful number, since it uses less digits than its factorization.

1142344505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57224.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1142344505 is about 33798.5873225494. The cubic root of 1142344505 is about 1045.3595688835.

Adding to 1142344505 its reverse (5054432411), we get a palindrome (6196776916).

The spelling of 1142344505 in words is "one billion, one hundred forty-two million, three hundred forty-four thousand, five hundred five".