145178047500 has 60 divisors (see below), whose sum is σ = 423300494232. Its totient is φ = 38714144000.

The previous prime is 145178047493. The next prime is 145178047523. The reversal of 145178047500 is 5740871541.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9671037 + ... + 9686036.

Almost surely, 2^145178047500 is an apocalyptic number.

145178047500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145178047500 is an abundant number, since it is smaller than the sum of its proper divisors (278122446732).

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

145178047500 is a wasteful number, since it uses less digits than its factorization.

145178047500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19357100 (or 19357083 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 145178047500 in words is "one hundred forty-five billion, one hundred seventy-eight million, forty-seven thousand, five hundred".