1142265117 has 32 divisors (see below), whose sum is σ = 1786220800. Its totient is φ = 649010880.

The previous prime is 1142265101. The next prime is 1142265119. The reversal of 1142265117 is 7115622411.

It is not a de Polignac number, because 1142265117 - 2⁴ = 1142265101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142265119) 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 31 ways as a sum of consecutive naturals, for example, 183183 + ... + 189315.

It is an arithmetic number, because the mean of its divisors is an integer number (55819400).

Almost surely, 2^1142265117 is an apocalyptic number.

It is an amenable number.

1142265117 is a deficient number, since it is larger than the sum of its proper divisors (643955683).

1142265117 is an equidigital number, since it uses as much as digits as its factorization.

1142265117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338 (or 6324 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 1142265117 is about 33797.4128743607. The cubic root of 1142265117 is about 1045.3353523337.

Adding to 1142265117 its reverse (7115622411), we get a palindrome (8257887528).

The spelling of 1142265117 in words is "one billion, one hundred forty-two million, two hundred sixty-five thousand, one hundred seventeen".