1142344521 has 12 divisors (see below), whose sum is σ = 1669934448. Its totient is φ = 752387064.

The previous prime is 1142344471. The next prime is 1142344531. The reversal of 1142344521 is 1254432411.

1142344521 is a `hidden beast` number, since 114 + 23 + 4 + 4 + 521 = 666.

It is not a de Polignac number, because 1142344521 - 2¹⁹ = 1141820233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142344531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763875 + ... + 765368.

It is an arithmetic number, because the mean of its divisors is an integer number (139161204).

Almost surely, 2^1142344521 is an apocalyptic number.

It is an amenable number.

1142344521 is a deficient number, since it is larger than the sum of its proper divisors (527589927).

1142344521 is a wasteful number, since it uses less digits than its factorization.

1142344521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529332 (or 1529329 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1142344521 is about 33798.5875592457. The cubic root of 1142344521 is about 1045.3595737640.

Adding to 1142344521 its reverse (1254432411), we get a palindrome (2396776932).

The spelling of 1142344521 in words is "one billion, one hundred forty-two million, three hundred forty-four thousand, five hundred twenty-one".