146515144 has 8 divisors (see below), whose sum is σ = 274715910. Its totient is φ = 73257568.

The previous prime is 146515139. The next prime is 146515151. The reversal of 146515144 is 441515641.

It can be written as a sum of positive squares in only one way, i.e., 140707044 + 5808100 = 11862^2 + 2410^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9157189 + ... + 9157204.

Almost surely, 2^146515144 is an apocalyptic number.

It is an amenable number.

146515144 is a deficient number, since it is larger than the sum of its proper divisors (128200766).

146515144 is a wasteful number, since it uses less digits than its factorization.

146515144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18314399 (or 18314395 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 146515144 is about 12104.3440136176. The cubic root of 146515144 is about 527.1823221430.

The spelling of 146515144 in words is "one hundred forty-six million, five hundred fifteen thousand, one hundred forty-four".