145597020 has 24 divisors (see below), whose sum is σ = 407671824. Its totient is φ = 38825856.

The previous prime is 145596949. The next prime is 145597021. The reversal of 145597020 is 20795541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145597021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213249 + ... + 1213368.

It is an arithmetic number, because the mean of its divisors is an integer number (16986326).

Almost surely, 2^145597020 is an apocalyptic number.

145597020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145597020 is an abundant number, since it is smaller than the sum of its proper divisors (262074804).

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

145597020 is a wasteful number, since it uses less digits than its factorization.

145597020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426629 (or 2426627 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 145597020 is about 12066.3590200193. The cubic root of 145597020 is about 526.0788337172.

The spelling of 145597020 in words is "one hundred forty-five million, five hundred ninety-seven thousand, twenty".