145022980 has 24 divisors (see below), whose sum is σ = 312780888. Its totient is φ = 56441088.

The previous prime is 145022963. The next prime is 145022989. The reversal of 145022980 is 89220541.

It can be written as a sum of positive squares in 4 ways, for example, as 35904064 + 109118916 = 5992^2 + 10446^2 .

It is not an unprimeable number, because it can be changed into a prime (145022989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97249 + ... + 98728.

It is an arithmetic number, because the mean of its divisors is an integer number (13032537).

Almost surely, 2^145022980 is an apocalyptic number.

145022980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145022980 is an abundant number, since it is smaller than the sum of its proper divisors (167757908).

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

145022980 is a wasteful number, since it uses less digits than its factorization.

145022980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196023 (or 196021 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 145022980 is about 12042.5487335530. The cubic root of 145022980 is about 525.3865392199.

The spelling of 145022980 in words is "one hundred forty-five million, twenty-two thousand, nine hundred eighty".