145728294 has 32 divisors (see below), whose sum is σ = 301777920. Its totient is φ = 46884672.

The previous prime is 145728293. The next prime is 145728307. The reversal of 145728294 is 492827541.

145728294 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 not an unprimeable number, because it can be changed into a prime (145728293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17047 + ... + 24125.

It is an arithmetic number, because the mean of its divisors is an integer number (9430560).

Almost surely, 2^145728294 is an apocalyptic number.

145728294 is an abundant number, since it is smaller than the sum of its proper divisors (156049626).

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

145728294 is a wasteful number, since it uses less digits than its factorization.

145728294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204.

The product of its digits is 161280, while the sum is 42.

The square root of 145728294 is about 12071.7974635097. The cubic root of 145728294 is about 526.2368949368.

The spelling of 145728294 in words is "one hundred forty-five million, seven hundred twenty-eight thousand, two hundred ninety-four".