145555504 has 20 divisors (see below), whose sum is σ = 296857240. Its totient is φ = 68947200.

The previous prime is 145555499. The next prime is 145555511. The reversal of 145555504 is 405555541.

It is a self number, because there is not a number n which added to its sum of digits gives 145555504.

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, 239097 + ... + 239704.

It is an arithmetic number, because the mean of its divisors is an integer number (14842862).

Almost surely, 2^145555504 is an apocalyptic number.

It is an amenable number.

145555504 is an abundant number, since it is smaller than the sum of its proper divisors (151301736).

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

145555504 is a wasteful number, since it uses less digits than its factorization.

145555504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478828 (or 478822 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

The square root of 145555504 is about 12064.6385772637. The cubic root of 145555504 is about 526.0288263634.

The spelling of 145555504 in words is "one hundred forty-five million, five hundred fifty-five thousand, five hundred four".