1142869005 has 48 divisors (see below), whose sum is σ = 2007635760. Its totient is φ = 601380864.

The previous prime is 1142868949. The next prime is 1142869069. The reversal of 1142869005 is 5009682411.

It can be written as a sum of positive squares in 8 ways, for example, as 674492841 + 468376164 = 25971^2 + 21642^2 .

It is not a de Polignac number, because 1142869005 - 2⁶ = 1142868941 is a prime.

It is a super-2 number, since 2×1142869005² = 2612299125179380050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1611591 + ... + 1612299.

It is an arithmetic number, because the mean of its divisors is an integer number (41825745).

Almost surely, 2^1142869005 is an apocalyptic number.

1142869005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142869005 is a deficient number, since it is larger than the sum of its proper divisors (864766755).

1142869005 is a wasteful number, since it uses less digits than its factorization.

1142869005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1142869005 is about 33806.3456321443. The cubic root of 1142869005 is about 1045.5195344042.

The spelling of 1142869005 in words is "one billion, one hundred forty-two million, eight hundred sixty-nine thousand, five".