145134544 has 20 divisors (see below), whose sum is σ = 282828996. Its totient is φ = 72146432.

The previous prime is 145134463. The next prime is 145134551. The reversal of 145134544 is 445431541.

It can be written as a sum of positive squares in 2 ways, for example, as 124992400 + 20142144 = 11180^2 + 4488^2 .

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, 23449 + ... + 28984.

Almost surely, 2^145134544 is an apocalyptic number.

It is an amenable number.

145134544 is a deficient number, since it is larger than the sum of its proper divisors (137694452).

145134544 is a wasteful number, since it uses less digits than its factorization.

145134544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52614 (or 52608 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 145134544 is about 12047.1799189686. The cubic root of 145134544 is about 525.5212286784.

It can be divided in two parts, 145 and 134544, that added together give a square (134689 = 367²).

The spelling of 145134544 in words is "one hundred forty-five million, one hundred thirty-four thousand, five hundred forty-four".