145500544 has 32 divisors (see below), whose sum is σ = 331275600. Its totient is φ = 62356992.

The previous prime is 145500527. The next prime is 145500559. The reversal of 145500544 is 445005541.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 80299 + ... + 82090.

Almost surely, 2^145500544 is an apocalyptic number.

145500544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145500544 is an abundant number, since it is smaller than the sum of its proper divisors (185775056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145500544 is an equidigital number, since it uses as much as digits as its factorization.

145500544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162410 (or 162398 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 145500544 is about 12062.3606313192. The cubic root of 145500544 is about 525.9626106518.

The spelling of 145500544 in words is "one hundred forty-five million, five hundred thousand, five hundred forty-four".