146900389 has 4 divisors (see below), whose sum is σ = 148414924. Its totient is φ = 145385856.

The previous prime is 146900371. The next prime is 146900393. The reversal of 146900389 is 983009641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82628100 + 64272289 = 9090^2 + 8017^2 .

It is a cyclic number.

It is not a de Polignac number, because 146900389 - 2¹³ = 146892197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146900329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 757122 + ... + 757315.

It is an arithmetic number, because the mean of its divisors is an integer number (37103731).

Almost surely, 2^146900389 is an apocalyptic number.

It is an amenable number.

146900389 is a deficient number, since it is larger than the sum of its proper divisors (1514535).

146900389 is an equidigital number, since it uses as much as digits as its factorization.

146900389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514534.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 146900389 is about 12120.2470684388. The cubic root of 146900389 is about 527.6439731896.

The spelling of 146900389 in words is "one hundred forty-six million, nine hundred thousand, three hundred eighty-nine".