1142989598 has 8 divisors (see below), whose sum is σ = 1717776720. Its totient is φ = 570397360.

The previous prime is 1142989591. The next prime is 1142989621. The reversal of 1142989598 is 8959892411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1142989598² = 2612850442272403208, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142989591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547418 + ... + 549501.

It is an arithmetic number, because the mean of its divisors is an integer number (214722090).

Almost surely, 2^1142989598 is an apocalyptic number.

1142989598 is a deficient number, since it is larger than the sum of its proper divisors (574787122).

1142989598 is a wasteful number, since it uses less digits than its factorization.

1142989598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097442.

The product of its digits is 1866240, while the sum is 56.

The square root of 1142989598 is about 33808.1291703637. The cubic root of 1142989598 is about 1045.5563067441.

The spelling of 1142989598 in words is "one billion, one hundred forty-two million, nine hundred eighty-nine thousand, five hundred ninety-eight".