1142573648 has 20 divisors (see below), whose sum is σ = 2214272340. Its totient is φ = 571148544.

The previous prime is 1142573633. The next prime is 1142573681. The reversal of 1142573648 is 8463752411.

It can be written as a sum of positive squares in 2 ways, for example, as 851939344 + 290634304 = 29188^2 + 17048^2 .

It is a super-2 number, since 2×1142573648² = 2610949082208055808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104036 + ... + 114492.

It is an arithmetic number, because the mean of its divisors is an integer number (110713617).

Almost surely, 2^1142573648 is an apocalyptic number.

It is an amenable number.

1142573648 is a deficient number, since it is larger than the sum of its proper divisors (1071698692).

1142573648 is a wasteful number, since it uses less digits than its factorization.

1142573648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294 (or 17288 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 1142573648 is about 33801.9769836026. The cubic root of 1142573648 is about 1045.4294604711.

The spelling of 1142573648 in words is "one billion, one hundred forty-two million, five hundred seventy-three thousand, six hundred forty-eight".