145120000 has 90 divisors (see below), whose sum is σ = 362374628. Its totient is φ = 57984000.

The previous prime is 145119991. The next prime is 145120013. The reversal of 145120000 is 21541.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159547 + ... + 160453.

Almost surely, 2^145120000 is an apocalyptic number.

145120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181187314).

145120000 is an abundant number, since it is smaller than the sum of its proper divisors (217254628).

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

145120000 is an frugal number, since it uses more digits than its factorization.

145120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 145120000 is about 12046.5762771005. The cubic root of 145120000 is about 525.5036738499.

Adding to 145120000 its reverse (21541), we get a palindrome (145141541).

The spelling of 145120000 in words is "one hundred forty-five million, one hundred twenty thousand".