1142521298 has 8 divisors (see below), whose sum is σ = 1760100492. Its totient is φ = 555821136.

The previous prime is 1142521291. The next prime is 1142521307. The reversal of 1142521298 is 8921252411.

It can be written as a sum of positive squares in 2 ways, for example, as 1142237209 + 284089 = 33797^2 + 533^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1142521291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7719665 + ... + 7719812.

Almost surely, 2^1142521298 is an apocalyptic number.

1142521298 is a deficient number, since it is larger than the sum of its proper divisors (617579194).

1142521298 is a wasteful number, since it uses less digits than its factorization.

1142521298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15439516.

The product of its digits is 11520, while the sum is 35.

The square root of 1142521298 is about 33801.2026117415. The cubic root of 1142521298 is about 1045.4134938656.

It can be divided in two parts, 11425 and 21298, that added together give a palindrome (32723).

The spelling of 1142521298 in words is "one billion, one hundred forty-two million, five hundred twenty-one thousand, two hundred ninety-eight".