1143554642 has 8 divisors (see below), whose sum is σ = 1755223536. Its totient is φ = 558480132.

The previous prime is 1143554551. The next prime is 1143554663. The reversal of 1143554642 is 2464553411.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 6648488 + ... + 6648659.

It is an arithmetic number, because the mean of its divisors is an integer number (219402942).

Almost surely, 2^1143554642 is an apocalyptic number.

1143554642 is a deficient number, since it is larger than the sum of its proper divisors (611668894).

1143554642 is a wasteful number, since it uses less digits than its factorization.

1143554642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13297192.

The product of its digits is 57600, while the sum is 35.

The square root of 1143554642 is about 33816.4847670482. The cubic root of 1143554642 is about 1045.7285707766.

The spelling of 1143554642 in words is "one billion, one hundred forty-three million, five hundred fifty-four thousand, six hundred forty-two".