1142573646 has 16 divisors (see below), whose sum is σ = 2319254784. Its totient is φ = 375173304.

The previous prime is 1142573633. The next prime is 1142573681. The reversal of 1142573646 is 6463752411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420710 + ... + 1421513.

It is an arithmetic number, because the mean of its divisors is an integer number (144953424).

Almost surely, 2^1142573646 is an apocalyptic number.

1142573646 is an abundant number, since it is smaller than the sum of its proper divisors (1176681138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142573646 is a wasteful number, since it uses less digits than its factorization.

1142573646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842295.

The product of its digits is 120960, while the sum is 39.

The square root of 1142573646 is about 33801.9769540185. The cubic root of 1142573646 is about 1045.4294598612.

The spelling of 1142573646 in words is "one billion, one hundred forty-two million, five hundred seventy-three thousand, six hundred forty-six".