1142505338 has 8 divisors (see below), whose sum is σ = 1845585588. Its totient is φ = 527310144.

The previous prime is 1142505337. The next prime is 1142505361. The reversal of 1142505338 is 8335052411.

It can be written as a sum of positive squares in 2 ways, for example, as 1136566369 + 5938969 = 33713^2 + 2437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1142505337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21971231 + ... + 21971282.

Almost surely, 2^1142505338 is an apocalyptic number.

1142505338 is a deficient number, since it is larger than the sum of its proper divisors (703080250).

1142505338 is a wasteful number, since it uses less digits than its factorization.

1142505338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43942528.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1142505338 is about 33800.9665246425. The cubic root of 1142505338 is about 1045.4086260127.

Adding to 1142505338 its reverse (8335052411), we get a palindrome (9477557749).

The spelling of 1142505338 in words is "one billion, one hundred forty-two million, five hundred five thousand, three hundred thirty-eight".