1142394454 has 8 divisors (see below), whose sum is σ = 1768868928. Its totient is φ = 552771480.

The previous prime is 1142394443. The next prime is 1142394457. The reversal of 1142394454 is 4544932411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142394457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9212797 + ... + 9212920.

It is an arithmetic number, because the mean of its divisors is an integer number (221108616).

Almost surely, 2^1142394454 is an apocalyptic number.

1142394454 is a deficient number, since it is larger than the sum of its proper divisors (626474474).

1142394454 is a wasteful number, since it uses less digits than its factorization.

1142394454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18425750.

The product of its digits is 69120, while the sum is 37.

The square root of 1142394454 is about 33799.3262358882. The cubic root of 1142394454 is about 1045.3748047731.

The spelling of 1142394454 in words is "one billion, one hundred forty-two million, three hundred ninety-four thousand, four hundred fifty-four".