1142260505 has 16 divisors (see below), whose sum is σ = 1426305024. Its totient is φ = 877481280.

The previous prime is 1142260459. The next prime is 1142260507. The reversal of 1142260505 is 5050622411.

It is not a de Polignac number, because 1142260505 - 2²² = 1138066201 is a prime.

It is a super-2 number, since 2×1142260505² = 2609518122565710050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142260507) 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 15 ways as a sum of consecutive naturals, for example, 33401 + ... + 58310.

It is an arithmetic number, because the mean of its divisors is an integer number (89144064).

Almost surely, 2^1142260505 is an apocalyptic number.

It is an amenable number.

1142260505 is a deficient number, since it is larger than the sum of its proper divisors (284044519).

1142260505 is an equidigital number, since it uses as much as digits as its factorization.

1142260505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91816.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1142260505 is about 33797.3446442172. The cubic root of 1142260505 is about 1045.3339454527. Note that the first 3 decimals are identical.

Adding to 1142260505 its reverse (5050622411), we get a palindrome (6192882916).

The spelling of 1142260505 in words is "one billion, one hundred forty-two million, two hundred sixty thousand, five hundred five".