1142921072 has 10 divisors (see below), whose sum is σ = 2214409608. Its totient is φ = 571460528.

The previous prime is 1142921047. The next prime is 1142921081. The reversal of 1142921072 is 2701292411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35716268 + ... + 35716299.

Almost surely, 2^1142921072 is an apocalyptic number.

It is an amenable number.

1142921072 is a deficient number, since it is larger than the sum of its proper divisors (1071488536).

1142921072 is an equidigital number, since it uses as much as digits as its factorization.

1142921072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71432575 (or 71432569 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1142921072 is about 33807.1157006924. The cubic root of 1142921072 is about 1045.5354114757.

The spelling of 1142921072 in words is "one billion, one hundred forty-two million, nine hundred twenty-one thousand, seventy-two".