145636520 has 32 divisors (see below), whose sum is σ = 344930400. Its totient is φ = 55188288.

The previous prime is 145636511. The next prime is 145636537. The reversal of 145636520 is 25636541.

It is a nialpdrome in base 15.

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 7 ways as a sum of consecutive naturals, for example, 95054 + ... + 96573.

It is an arithmetic number, because the mean of its divisors is an integer number (10779075).

Almost surely, 2^145636520 is an apocalyptic number.

145636520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145636520 is an abundant number, since it is smaller than the sum of its proper divisors (199293880).

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

145636520 is a wasteful number, since it uses less digits than its factorization.

145636520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191657 (or 191653 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 145636520 is about 12067.9956910831. The cubic root of 145636520 is about 526.1264039102.

The spelling of 145636520 in words is "one hundred forty-five million, six hundred thirty-six thousand, five hundred twenty".