320454142 has 4 divisors (see below), whose sum is σ = 480681216. Its totient is φ = 160227070.

The previous prime is 320454137. The next prime is 320454143. The reversal of 320454142 is 241454023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241454023 = 23 ⋅10498001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320454143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80113534 + ... + 80113537.

It is an arithmetic number, because the mean of its divisors is an integer number (120170304).

Almost surely, 2^320454142 is an apocalyptic number.

320454142 is a deficient number, since it is larger than the sum of its proper divisors (160227074).

320454142 is a wasteful number, since it uses less digits than its factorization.

320454142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160227073.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 320454142 is about 17901.2329742954. The cubic root of 320454142 is about 684.3137973445.

The spelling of 320454142 in words is "three hundred twenty million, four hundred fifty-four thousand, one hundred forty-two".