146427331 has 2 divisors, whose sum is σ = 146427332. Its totient is φ = 146427330.

The previous prime is 146427329. The next prime is 146427343. The reversal of 146427331 is 133724641.

146427331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146427331 - 2¹ = 146427329 is a prime.

It is a super-2 number, since 2×146427331² = 42881926527567122, which contains 22 as substring.

Together with 146427329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 146427293 and 146427302.

It is not a weakly prime, because it can be changed into another prime (146427311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73213665 + 73213666.

It is an arithmetic number, because the mean of its divisors is an integer number (73213666).

Almost surely, 2^146427331 is an apocalyptic number.

146427331 is a deficient number, since it is larger than the sum of its proper divisors (1).

146427331 is an equidigital number, since it uses as much as digits as its factorization.

146427331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 146427331 is about 12100.7161358326. The cubic root of 146427331 is about 527.0769798745.

The spelling of 146427331 in words is "one hundred forty-six million, four hundred twenty-seven thousand, three hundred thirty-one".