145520423000 has 32 divisors (see below), whose sum is σ = 340517792160. Its totient is φ = 58208168800.

The previous prime is 145520422979. The next prime is 145520423029. The reversal of 145520423000 is 324025541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72759212 + ... + 72761211.

It is an arithmetic number, because the mean of its divisors is an integer number (10641181005).

Almost surely, 2^145520423000 is an apocalyptic number.

145520423000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145520423000 is an abundant number, since it is smaller than the sum of its proper divisors (194997369160).

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

145520423000 is a wasteful number, since it uses less digits than its factorization.

145520423000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145520444 (or 145520430 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 145520423000 its reverse (324025541), we get a palindrome (145844448541).

The spelling of 145520423000 in words is "one hundred forty-five billion, five hundred twenty million, four hundred twenty-three thousand".