1142753399 has 4 divisors (see below), whose sum is σ = 1173638664. Its totient is φ = 1111868136.

The previous prime is 1142753387. The next prime is 1142753401. The reversal of 1142753399 is 9933572411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1142753399 - 2⁴ = 1142753383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142753369) 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 3 ways as a sum of consecutive naturals, for example, 15442577 + ... + 15442650.

It is an arithmetic number, because the mean of its divisors is an integer number (293409666).

Almost surely, 2^1142753399 is an apocalyptic number.

1142753399 is a deficient number, since it is larger than the sum of its proper divisors (30885265).

1142753399 is an equidigital number, since it uses as much as digits as its factorization.

1142753399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30885264.

The product of its digits is 204120, while the sum is 44.

The square root of 1142753399 is about 33804.6357619780. The cubic root of 1142753399 is about 1045.4842803180.

The spelling of 1142753399 in words is "one billion, one hundred forty-two million, seven hundred fifty-three thousand, three hundred ninety-nine".