1142507648 has 16 divisors (see below), whose sum is σ = 2276089710. Its totient is φ = 571253760.

The previous prime is 1142507629. The next prime is 1142507659. The reversal of 1142507648 is 8467052411.

It can be written as a sum of positive squares in only one way, i.e., 1013276224 + 129231424 = 31832^2 + 11368^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4462793 + ... + 4463048.

Almost surely, 2^1142507648 is an apocalyptic number.

It is an amenable number.

1142507648 is a deficient number, since it is larger than the sum of its proper divisors (1133582062).

1142507648 is an frugal number, since it uses more digits than its factorization.

1142507648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8925855 (or 8925843 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 1142507648 is about 33801.0006952457. Note that the first 3 decimals coincide. The cubic root of 1142507648 is about 1045.4093305731.

The spelling of 1142507648 in words is "one billion, one hundred forty-two million, five hundred seven thousand, six hundred forty-eight".