146271789 has 24 divisors (see below), whose sum is σ = 221350272. Its totient is φ = 92901600.

The previous prime is 146271773. The next prime is 146271809. The reversal of 146271789 is 987172641.

It is a happy number.

146271789 is a `hidden beast` number, since 1 + 4 + 627 + 17 + 8 + 9 = 666.

It is not a de Polignac number, because 146271789 - 2⁴ = 146271773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146273789) 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 in 23 ways as a sum of consecutive naturals, for example, 56064 + ... + 58614.

It is an arithmetic number, because the mean of its divisors is an integer number (9222928).

Almost surely, 2^146271789 is an apocalyptic number.

It is an amenable number.

146271789 is a deficient number, since it is larger than the sum of its proper divisors (75078483).

146271789 is a wasteful number, since it uses less digits than its factorization.

146271789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857 (or 2854 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 146271789 is about 12094.2874531739. The cubic root of 146271789 is about 526.8902850984.

The spelling of 146271789 in words is "one hundred forty-six million, two hundred seventy-one thousand, seven hundred eighty-nine".