320142151 has 4 divisors (see below), whose sum is σ = 365876752. Its totient is φ = 274407552.

The previous prime is 320142149. The next prime is 320142161. The reversal of 320142151 is 151241023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151241023 = 83 ⋅1822181.

It is a cyclic number.

It is not a de Polignac number, because 320142151 - 2¹ = 320142149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320142131) 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, 22867290 + ... + 22867303.

It is an arithmetic number, because the mean of its divisors is an integer number (91469188).

Almost surely, 2^320142151 is an apocalyptic number.

320142151 is a deficient number, since it is larger than the sum of its proper divisors (45734601).

320142151 is an equidigital number, since it uses as much as digits as its factorization.

320142151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45734600.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 320142151 is about 17892.5166200845. The cubic root of 320142151 is about 684.0916448401.

Adding to 320142151 its reverse (151241023), we get a palindrome (471383174).

The spelling of 320142151 in words is "three hundred twenty million, one hundred forty-two thousand, one hundred fifty-one".