145542428 has 6 divisors (see below), whose sum is σ = 254699256. Its totient is φ = 72771212.

The previous prime is 145542391. The next prime is 145542437. The reversal of 145542428 is 824245541.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18192800 + ... + 18192807.

It is an arithmetic number, because the mean of its divisors is an integer number (42449876).

Almost surely, 2^145542428 is an apocalyptic number.

It is an amenable number.

145542428 is a deficient number, since it is larger than the sum of its proper divisors (109156828).

145542428 is a wasteful number, since it uses less digits than its factorization.

145542428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36385611 (or 36385609 counting only the distinct ones).

The product of its digits is 51200, while the sum is 35.

The square root of 145542428 is about 12064.0966508065. The cubic root of 145542428 is about 526.0130739328.

Adding to 145542428 its reverse (824245541), we get a palindrome (969787969).

The spelling of 145542428 in words is "one hundred forty-five million, five hundred forty-two thousand, four hundred twenty-eight".