145385248 has 24 divisors (see below), whose sum is σ = 286496028. Its totient is φ = 72624384.

The previous prime is 145385239. The next prime is 145385281. The reversal of 145385248 is 842583541.

It can be written as a sum of positive squares in 2 ways, for example, as 127509264 + 17875984 = 11292^2 + 4228^2 .

It is a super-2 number, since 2×145385248² = 42273740672043008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145385248.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64590 + ... + 66802.

Almost surely, 2^145385248 is an apocalyptic number.

It is an amenable number.

145385248 is a deficient number, since it is larger than the sum of its proper divisors (141110780).

145385248 is a wasteful number, since it uses less digits than its factorization.

145385248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276 (or 4268 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 145385248 is about 12057.5805201541. The cubic root of 145385248 is about 525.8236480331.

The spelling of 145385248 in words is "one hundred forty-five million, three hundred eighty-five thousand, two hundred forty-eight".