145505564 has 24 divisors (see below), whose sum is σ = 263859120. Its totient is φ = 70164224.

The previous prime is 145505543. The next prime is 145505609. The reversal of 145505564 is 465505541.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 6692 + ... + 18324.

It is an arithmetic number, because the mean of its divisors is an integer number (10994130).

Almost surely, 2^145505564 is an apocalyptic number.

It is an amenable number.

145505564 is a deficient number, since it is larger than the sum of its proper divisors (118353556).

145505564 is a wasteful number, since it uses less digits than its factorization.

145505564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11749 (or 11747 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 145505564 is about 12062.5687148302. The cubic root of 145505564 is about 525.9686594309.

The spelling of 145505564 in words is "one hundred forty-five million, five hundred five thousand, five hundred sixty-four".