146733121 has 4 divisors (see below), whose sum is σ = 149138644. Its totient is φ = 144327600.

The previous prime is 146733113. The next prime is 146733163. The reversal of 146733121 is 121337641.

146733121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12173121 + 134560000 = 3489^2 + 11600^2 .

It is a cyclic number.

It is not a de Polignac number, because 146733121 - 2³ = 146733113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146733121.

It is not an unprimeable number, because it can be changed into a prime (146733101) 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, 1202670 + ... + 1202791.

It is an arithmetic number, because the mean of its divisors is an integer number (37284661).

Almost surely, 2^146733121 is an apocalyptic number.

It is an amenable number.

146733121 is a deficient number, since it is larger than the sum of its proper divisors (2405523).

146733121 is an equidigital number, since it uses as much as digits as its factorization.

146733121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405522.

The product of its digits is 3024, while the sum is 28.

The square root of 146733121 is about 12113.3447486646. The cubic root of 146733121 is about 527.4436300133.

The spelling of 146733121 in words is "one hundred forty-six million, seven hundred thirty-three thousand, one hundred twenty-one".