145729912 has 16 divisors (see below), whose sum is σ = 274986360. Its totient is φ = 72400224.

The previous prime is 145729907. The next prime is 145729931. The reversal of 145729912 is 219927541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56758 + ... + 59269.

Almost surely, 2^145729912 is an apocalyptic number.

It is an amenable number.

145729912 is a deficient number, since it is larger than the sum of its proper divisors (129256448).

145729912 is a wasteful number, since it uses less digits than its factorization.

145729912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116190 (or 116186 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 145729912 is about 12071.8644790273. The cubic root of 145729912 is about 526.2388425067.

It can be divided in two parts, 145729 and 912, that added together give a palindrome (146641).

The spelling of 145729912 in words is "one hundred forty-five million, seven hundred twenty-nine thousand, nine hundred twelve".