146730145 has 8 divisors (see below), whose sum is σ = 186433704. Its totient is φ = 110479104.

The previous prime is 146730127. The next prime is 146730149. The reversal of 146730145 is 541037641.

It can be written as a sum of positive squares in 4 ways, for example, as 2634129 + 144096016 = 1623^2 + 12004^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 146730145 - 2⁵ = 146730113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146730149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863034 + ... + 863203.

It is an arithmetic number, because the mean of its divisors is an integer number (23304213).

Almost surely, 2^146730145 is an apocalyptic number.

It is an amenable number.

146730145 is a deficient number, since it is larger than the sum of its proper divisors (39703559).

146730145 is a wasteful number, since it uses less digits than its factorization.

146730145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726259.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 146730145 is about 12113.2219083116. The cubic root of 146730145 is about 527.4400641679.

Adding to 146730145 its reverse (541037641), we get a palindrome (687767786).

The spelling of 146730145 in words is "one hundred forty-six million, seven hundred thirty thousand, one hundred forty-five".