1142896869 has 12 divisors (see below), whose sum is σ = 1674103392. Its totient is φ = 751199400.

The previous prime is 1142896849. The next prime is 1142896907. The reversal of 1142896869 is 9686982411.

It is not a de Polignac number, because 1142896869 - 2⁹ = 1142896357 is a prime.

It is a super-2 number, since 2×1142896869² = 2612426506340006322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142896819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 893647 + ... + 894924.

It is an arithmetic number, because the mean of its divisors is an integer number (139508616).

Almost surely, 2^1142896869 is an apocalyptic number.

It is an amenable number.

1142896869 is a deficient number, since it is larger than the sum of its proper divisors (531206523).

1142896869 is a wasteful number, since it uses less digits than its factorization.

1142896869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788648 (or 1788645 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 1142896869 is about 33806.7577416114. The cubic root of 1142896869 is about 1045.5280311842.

The spelling of 1142896869 in words is "one billion, one hundred forty-two million, eight hundred ninety-six thousand, eight hundred sixty-nine".