145541428 has 6 divisors (see below), whose sum is σ = 254697506. Its totient is φ = 72770712.

The previous prime is 145541371. The next prime is 145541441. The reversal of 145541428 is 824145541.

145541428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 91929744 + 53611684 = 9588^2 + 7322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145541393 and 145541402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18192675 + ... + 18192682.

Almost surely, 2^145541428 is an apocalyptic number.

It is an amenable number.

145541428 is a deficient number, since it is larger than the sum of its proper divisors (109156078).

145541428 is a wasteful number, since it uses less digits than its factorization.

145541428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36385361 (or 36385359 counting only the distinct ones).

The product of its digits is 25600, while the sum is 34.

The square root of 145541428 is about 12064.0552054440. The cubic root of 145541428 is about 526.0118692113.

Adding to 145541428 its reverse (824145541), we get a palindrome (969686969).

The spelling of 145541428 in words is "one hundred forty-five million, five hundred forty-one thousand, four hundred twenty-eight".