145719544 has 8 divisors (see below), whose sum is σ = 273224160. Its totient is φ = 72859768.

The previous prime is 145719523. The next prime is 145719547. The reversal of 145719544 is 445917541.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 145719497 and 145719506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145719547) 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, 9107464 + ... + 9107479.

It is an arithmetic number, because the mean of its divisors is an integer number (34153020).

Almost surely, 2^145719544 is an apocalyptic number.

It is an amenable number.

145719544 is a deficient number, since it is larger than the sum of its proper divisors (127504616).

145719544 is a wasteful number, since it uses less digits than its factorization.

145719544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18214949 (or 18214945 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 145719544 is about 12071.4350431090. The cubic root of 145719544 is about 526.2263624020.

The spelling of 145719544 in words is "one hundred forty-five million, seven hundred nineteen thousand, five hundred forty-four".