1142561522 has 8 divisors (see below), whose sum is σ = 1716390876. Its totient is φ = 570431232.

The previous prime is 1142561503. The next prime is 1142561531. The reversal of 1142561522 is 2251652411.

It can be written as a sum of positive squares in 2 ways, for example, as 1098856201 + 43705321 = 33149^2 + 6611^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 423083 + ... + 425774.

Almost surely, 2^1142561522 is an apocalyptic number.

1142561522 is a deficient number, since it is larger than the sum of its proper divisors (573829354).

1142561522 is an equidigital number, since it uses as much as digits as its factorization.

1142561522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849532.

The product of its digits is 4800, while the sum is 29.

The square root of 1142561522 is about 33801.7976149198. The cubic root of 1142561522 is about 1045.4257621180.

The spelling of 1142561522 in words is "one billion, one hundred forty-two million, five hundred sixty-one thousand, five hundred twenty-two".