145506000 has 80 divisors (see below), whose sum is σ = 469130688. Its totient is φ = 38800000.

The previous prime is 145505993. The next prime is 145506001. The reversal of 145506000 is 605541.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145506001) 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 in 15 ways as a sum of consecutive naturals, for example, 6126 + ... + 18125.

Almost surely, 2^145506000 is an apocalyptic number.

145506000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145506000 is an abundant number, since it is smaller than the sum of its proper divisors (323624688).

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

145506000 is a wasteful number, since it uses less digits than its factorization.

145506000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24277 (or 24261 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 145506000 is about 12062.5867872526. The cubic root of 145506000 is about 525.9691847764.

The spelling of 145506000 in words is "one hundred forty-five million, five hundred six thousand".