146623331 has 2 divisors, whose sum is σ = 146623332. Its totient is φ = 146623330.

The previous prime is 146623261. The next prime is 146623349. The reversal of 146623331 is 133326641.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146623331 is a prime.

It is a super-2 number, since 2×146623331² = 42996802387071122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 146623294 and 146623303.

It is not a weakly prime, because it can be changed into another prime (146623381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73311665 + 73311666.

It is an arithmetic number, because the mean of its divisors is an integer number (73311666).

Almost surely, 2^146623331 is an apocalyptic number.

146623331 is a deficient number, since it is larger than the sum of its proper divisors (1).

146623331 is an equidigital number, since it uses as much as digits as its factorization.

146623331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 146623331 is about 12108.8121217566. The cubic root of 146623331 is about 527.3120476217.

Adding to 146623331 its reverse (133326641), we get a palindrome (279949972).

The spelling of 146623331 in words is "one hundred forty-six million, six hundred twenty-three thousand, three hundred thirty-one".