145994720 has 24 divisors (see below), whose sum is σ = 344912904. Its totient is φ = 58397824.

The previous prime is 145994707. The next prime is 145994741. The reversal of 145994720 is 27499541.

145994720 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456074 + ... + 456393.

It is an arithmetic number, because the mean of its divisors is an integer number (14371371).

Almost surely, 2^145994720 is an apocalyptic number.

145994720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145994720 is an abundant number, since it is smaller than the sum of its proper divisors (198918184).

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

145994720 is an equidigital number, since it uses as much as digits as its factorization.

145994720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912482 (or 912474 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 145994720 is about 12082.8274836646. The cubic root of 145994720 is about 526.5573951229.

The spelling of 145994720 in words is "one hundred forty-five million, nine hundred ninety-four thousand, seven hundred twenty".