146709121 has 8 divisors (see below), whose sum is σ = 159002984. Its totient is φ = 134559360.

The previous prime is 146709119. The next prime is 146709131. The reversal of 146709121 is 121907641.

It can be written as a sum of positive squares in 4 ways, for example, as 10660225 + 136048896 = 3265^2 + 11664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 146709121 - 2¹ = 146709119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146709131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33900 + ... + 37981.

It is an arithmetic number, because the mean of its divisors is an integer number (19875373).

Almost surely, 2^146709121 is an apocalyptic number.

It is an amenable number.

146709121 is a deficient number, since it is larger than the sum of its proper divisors (12293863).

146709121 is a wasteful number, since it uses less digits than its factorization.

146709121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72051.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 146709121 is about 12112.3540651683. The cubic root of 146709121 is about 527.4148718223.

The spelling of 146709121 in words is "one hundred forty-six million, seven hundred nine thousand, one hundred twenty-one".