146030389 has 4 divisors (see below), whose sum is σ = 146087424. Its totient is φ = 145973356.

The previous prime is 146030351. The next prime is 146030393. The reversal of 146030389 is 983030641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 983030641 = 269 ⋅3654389.

It is a cyclic number.

It is not a de Polignac number, because 146030389 - 2¹⁷ = 145899317 is a prime.

It is a super-2 number, since 2×146030389² = 42649749022982642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146030329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24487 + ... + 29860.

It is an arithmetic number, because the mean of its divisors is an integer number (36521856).

Almost surely, 2^146030389 is an apocalyptic number.

It is an amenable number.

146030389 is a deficient number, since it is larger than the sum of its proper divisors (57035).

146030389 is an equidigital number, since it uses as much as digits as its factorization.

146030389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57034.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 146030389 is about 12084.3034139333. The cubic root of 146030389 is about 526.6002739484.

The spelling of 146030389 in words is "one hundred forty-six million, thirty thousand, three hundred eighty-nine".