1145133242 has 64 divisors (see below), whose sum is σ = 1990656000. Its totient is φ = 489288000.

The previous prime is 1145133229. The next prime is 1145133289. The reversal of 1145133242 is 2423315411.

It is a happy number.

It is a super-2 number, since 2×1145133242² = 2622660283866861128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5995367 + ... + 5995557.

It is an arithmetic number, because the mean of its divisors is an integer number (31104000).

Almost surely, 2^1145133242 is an apocalyptic number.

1145133242 is a deficient number, since it is larger than the sum of its proper divisors (845522758).

1145133242 is a wasteful number, since it uses less digits than its factorization.

1145133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443.

The product of its digits is 2880, while the sum is 26.

The square root of 1145133242 is about 33839.8174049447. The cubic root of 1145133242 is about 1046.2095354352.

Adding to 1145133242 its reverse (2423315411), we get a palindrome (3568448653).

The spelling of 1145133242 in words is "one billion, one hundred forty-five million, one hundred thirty-three thousand, two hundred forty-two".