145930999 has 2 divisors, whose sum is σ = 145931000. Its totient is φ = 145930998.

The previous prime is 145930979. The next prime is 145931017. The reversal of 145930999 is 999039541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145930999 - 2⁹ = 145930487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145930969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72965499 + 72965500.

It is an arithmetic number, because the mean of its divisors is an integer number (72965500).

Almost surely, 2^145930999 is an apocalyptic number.

145930999 is a deficient number, since it is larger than the sum of its proper divisors (1).

145930999 is an equidigital number, since it uses as much as digits as its factorization.

145930999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 145930999 is about 12080.1903544605. The cubic root of 145930999 is about 526.4807767209.

The spelling of 145930999 in words is "one hundred forty-five million, nine hundred thirty thousand, nine hundred ninety-nine".