1142625544 has 8 divisors (see below), whose sum is σ = 2142422910. Its totient is φ = 571312768.

The previous prime is 1142625511. The next prime is 1142625551. The reversal of 1142625544 is 4455262411.

It can be written as a sum of positive squares in only one way, i.e., 891022500 + 251603044 = 29850^2 + 15862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71414089 + ... + 71414104.

Almost surely, 2^1142625544 is an apocalyptic number.

It is an amenable number.

1142625544 is a deficient number, since it is larger than the sum of its proper divisors (999797366).

1142625544 is a wasteful number, since it uses less digits than its factorization.

1142625544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142828199 (or 142828195 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 1142625544 is about 33802.7446222936. The cubic root of 1142625544 is about 1045.4452881265.

Adding to 1142625544 its reverse (4455262411), we get a palindrome (5597887955).

The spelling of 1142625544 in words is "one billion, one hundred forty-two million, six hundred twenty-five thousand, five hundred forty-four".