145714728 has 16 divisors (see below), whose sum is σ = 364286880. Its totient is φ = 48571568.

The previous prime is 145714727. The next prime is 145714733. The reversal of 145714728 is 827417541.

145714728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145714728² = 42465563912227968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145714721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035700 + ... + 3035747.

It is an arithmetic number, because the mean of its divisors is an integer number (22767930).

Almost surely, 2^145714728 is an apocalyptic number.

It is an amenable number.

145714728 is an abundant number, since it is smaller than the sum of its proper divisors (218572152).

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

145714728 is a wasteful number, since it uses less digits than its factorization.

145714728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071456 (or 6071452 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 145714728 is about 12071.2355622778. The cubic root of 145714728 is about 526.2205651149.

The spelling of 145714728 in words is "one hundred forty-five million, seven hundred fourteen thousand, seven hundred twenty-eight".