145153544 has 8 divisors (see below), whose sum is σ = 272162910. Its totient is φ = 72576768.

The previous prime is 145153523. The next prime is 145153549. The reversal of 145153544 is 445351541.

It can be written as a sum of positive squares in only one way, i.e., 144913444 + 240100 = 12038^2 + 490^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 145153544.

It is not an unprimeable number, because it can be changed into a prime (145153549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9072089 + ... + 9072104.

Almost surely, 2^145153544 is an apocalyptic number.

It is an amenable number.

145153544 is a deficient number, since it is larger than the sum of its proper divisors (127009366).

145153544 is a wasteful number, since it uses less digits than its factorization.

145153544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18144199 (or 18144195 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 145153544 is about 12047.9684594541. The cubic root of 145153544 is about 525.5441601997.

The spelling of 145153544 in words is "one hundred forty-five million, one hundred fifty-three thousand, five hundred forty-four".