80142331 has 4 divisors (see below), whose sum is σ = 82097064. Its totient is φ = 78187600.

The previous prime is 80142329. The next prime is 80142371. The reversal of 80142331 is 13324108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80142331 - 2¹ = 80142329 is a prime.

It is a super-2 number, since 2×80142331² = 12845586436227122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80142311) 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 in 3 ways as a sum of consecutive naturals, for example, 977305 + ... + 977386.

It is an arithmetic number, because the mean of its divisors is an integer number (20524266).

Almost surely, 2^80142331 is an apocalyptic number.

80142331 is a deficient number, since it is larger than the sum of its proper divisors (1954733).

80142331 is a wasteful number, since it uses less digits than its factorization.

80142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954732.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 80142331 is about 8952.2249189796. The cubic root of 80142331 is about 431.1423223148.

Adding to 80142331 its reverse (13324108), we get a palindrome (93466439).

The spelling of 80142331 in words is "eighty million, one hundred forty-two thousand, three hundred thirty-one".