145871332 has 6 divisors (see below), whose sum is σ = 255274838. Its totient is φ = 72935664.

The previous prime is 145871309. The next prime is 145871333. The reversal of 145871332 is 233178541.

It can be written as a sum of positive squares in only one way, i.e., 124858276 + 21013056 = 11174^2 + 4584^2 .

It is not an unprimeable number, because it can be changed into a prime (145871333) 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 as a sum of consecutive naturals, namely, 18233913 + ... + 18233920.

Almost surely, 2^145871332 is an apocalyptic number.

It is an amenable number.

145871332 is a deficient number, since it is larger than the sum of its proper divisors (109403506).

145871332 is a wasteful number, since it uses less digits than its factorization.

145871332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36467837 (or 36467835 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 145871332 is about 12077.7204802893. The cubic root of 145871332 is about 526.4090126428.

The spelling of 145871332 in words is "one hundred forty-five million, eight hundred seventy-one thousand, three hundred thirty-two".