1142505233 has 16 divisors (see below), whose sum is σ = 1181796480. Its totient is φ = 1104096000.

The previous prime is 1142505211. The next prime is 1142505241. The reversal of 1142505233 is 3325052411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1142505233 - 2⁸ = 1142504977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142505293) 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 15 ways as a sum of consecutive naturals, for example, 766553 + ... + 768041.

It is an arithmetic number, because the mean of its divisors is an integer number (73862280).

Almost surely, 2^1142505233 is an apocalyptic number.

It is an amenable number.

1142505233 is a deficient number, since it is larger than the sum of its proper divisors (39291247).

1142505233 is a wasteful number, since it uses less digits than its factorization.

1142505233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1142505233 is about 33800.9649714324. The cubic root of 1142505233 is about 1045.4085939872.

Adding to 1142505233 its reverse (3325052411), we get a palindrome (4467557644).

The spelling of 1142505233 in words is "one billion, one hundred forty-two million, five hundred five thousand, two hundred thirty-three".