145306248 has 64 divisors (see below), whose sum is σ = 370180800. Its totient is φ = 47523840.

The previous prime is 145306229. The next prime is 145306277. The reversal of 145306248 is 842603541.

It is a super-2 number, since 2×145306248² = 42227811415675008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355068 + ... + 355476.

It is an arithmetic number, because the mean of its divisors is an integer number (5784075).

Almost surely, 2^145306248 is an apocalyptic number.

It is an amenable number.

145306248 is an abundant number, since it is smaller than the sum of its proper divisors (224874552).

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

145306248 is a wasteful number, since it uses less digits than its factorization.

145306248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 145306248 is about 12054.3041275720. The cubic root of 145306248 is about 525.7283894126.

Adding to 145306248 its reverse (842603541), we get a palindrome (987909789).

The spelling of 145306248 in words is "one hundred forty-five million, three hundred six thousand, two hundred forty-eight".