146543121 has 16 divisors (see below), whose sum is σ = 217697920. Its totient is φ = 97426800.

The previous prime is 146543101. The next prime is 146543123. The reversal of 146543121 is 121345641.

It is a happy number.

146543121 is a `hidden beast` number, since 1 + 4 + 654 + 3 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 146543121 - 2⁷ = 146542993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146543123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2796 + ... + 17346.

It is an arithmetic number, because the mean of its divisors is an integer number (13606120).

Almost surely, 2^146543121 is an apocalyptic number.

It is an amenable number.

146543121 is a deficient number, since it is larger than the sum of its proper divisors (71154799).

146543121 is a wasteful number, since it uses less digits than its factorization.

146543121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14933 (or 14927 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 146543121 is about 12105.4996179423. The cubic root of 146543121 is about 527.2158750822.

Adding to 146543121 its reverse (121345641), we get a palindrome (267888762).

The spelling of 146543121 in words is "one hundred forty-six million, five hundred forty-three thousand, one hundred twenty-one".