145933385 has 16 divisors (see below), whose sum is σ = 190466640. Its totient is φ = 106694400.

The previous prime is 145933379. The next prime is 145933393. The reversal of 145933385 is 583339541.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1236544 + 144696841 = 1112^2 + 12029^2 .

It is not a de Polignac number, because 145933385 - 2⁴ = 145933369 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4550 + ... + 17679.

It is an arithmetic number, because the mean of its divisors is an integer number (11904165).

Almost surely, 2^145933385 is an apocalyptic number.

It is an amenable number.

145933385 is a deficient number, since it is larger than the sum of its proper divisors (44533255).

145933385 is a wasteful number, since it uses less digits than its factorization.

145933385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22348.

The product of its digits is 194400, while the sum is 41.

The square root of 145933385 is about 12080.2891107788. The cubic root of 145933385 is about 526.4836460593.

The spelling of 145933385 in words is "one hundred forty-five million, nine hundred thirty-three thousand, three hundred eighty-five".