145544552 has 16 divisors (see below), whose sum is σ = 284761440. Its totient is φ = 69608176.

The previous prime is 145544543. The next prime is 145544561. The reversal of 145544552 is 255445541.

It is an interprime number because it is at equal distance from previous prime (145544543) and next prime (145544561).

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 in 3 ways as a sum of consecutive naturals, for example, 395318 + ... + 395685.

It is an arithmetic number, because the mean of its divisors is an integer number (17797590).

Almost surely, 2^145544552 is an apocalyptic number.

It is an amenable number.

145544552 is a deficient number, since it is larger than the sum of its proper divisors (139216888).

145544552 is a wasteful number, since it uses less digits than its factorization.

145544552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791032 (or 791028 counting only the distinct ones).

The product of its digits is 80000, while the sum is 35.

The square root of 145544552 is about 12064.1846802840. The cubic root of 145544552 is about 526.0156327429.

The spelling of 145544552 in words is "one hundred forty-five million, five hundred forty-four thousand, five hundred fifty-two".