1142613280 has 48 divisors (see below), whose sum is σ = 2772395640. Its totient is φ = 444690432.

The previous prime is 1142613259. The next prime is 1142613289. The reversal of 1142613280 is 823162411.

It can be written as a sum of positive squares in 4 ways, for example, as 869306256 + 273307024 = 29484^2 + 16532^2 .

It is not an unprimeable number, because it can be changed into a prime (1142613289) 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 7 ways as a sum of consecutive naturals, for example, 90585 + ... + 102424.

Almost surely, 2^1142613280 is an apocalyptic number.

1142613280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142613280 is an abundant number, since it is smaller than the sum of its proper divisors (1629782360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142613280 is a wasteful number, since it uses less digits than its factorization.

1142613280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193061 (or 193053 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1142613280 is about 33802.5632164190. The cubic root of 1142613280 is about 1045.4415477974.

Adding to 1142613280 its reverse (823162411), we get a palindrome (1965775691).

The spelling of 1142613280 in words is "one billion, one hundred forty-two million, six hundred thirteen thousand, two hundred eighty".