146643907 has 2 divisors, whose sum is σ = 146643908. Its totient is φ = 146643906.

The previous prime is 146643899. The next prime is 146643941. The reversal of 146643907 is 709346641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146643907 - 2³ = 146643899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146643907.

It is not a weakly prime, because it can be changed into another prime (146643967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73321953 + 73321954.

It is an arithmetic number, because the mean of its divisors is an integer number (73321954).

Almost surely, 2^146643907 is an apocalyptic number.

146643907 is a deficient number, since it is larger than the sum of its proper divisors (1).

146643907 is an equidigital number, since it uses as much as digits as its factorization.

146643907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 146643907 is about 12109.6617211217. The cubic root of 146643907 is about 527.3367127850.

The spelling of 146643907 in words is "one hundred forty-six million, six hundred forty-three thousand, nine hundred seven".