1142625305 has 16 divisors (see below), whose sum is σ = 1417569024. Its totient is φ = 883483200.

The previous prime is 1142625271. The next prime is 1142625359. The reversal of 1142625305 is 5035262411.

It is not a de Polignac number, because 1142625305 - 2⁶ = 1142625241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 7484 + ... + 48386.

It is an arithmetic number, because the mean of its divisors is an integer number (88598064).

Almost surely, 2^1142625305 is an apocalyptic number.

It is an amenable number.

1142625305 is a deficient number, since it is larger than the sum of its proper divisors (274943719).

1142625305 is a wasteful number, since it uses less digits than its factorization.

1142625305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41096.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1142625305 is about 33802.7410870775. The cubic root of 1142625305 is about 1045.4452152355.

Adding to 1142625305 its reverse (5035262411), we get a palindrome (6177887716).

The spelling of 1142625305 in words is "one billion, one hundred forty-two million, six hundred twenty-five thousand, three hundred five".