145873688 has 8 divisors (see below), whose sum is σ = 273513180. Its totient is φ = 72936840.

The previous prime is 145873669. The next prime is 145873691. The reversal of 145873688 is 886378541.

It is a tau number, because it is divible by the number of its divisors (8).

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, 9117098 + ... + 9117113.

Almost surely, 2^145873688 is an apocalyptic number.

It is an amenable number.

145873688 is a deficient number, since it is larger than the sum of its proper divisors (127639492).

145873688 is a wasteful number, since it uses less digits than its factorization.

145873688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18234217 (or 18234213 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 145873688 is about 12077.8180148568. The cubic root of 145873688 is about 526.4118466768.

The spelling of 145873688 in words is "one hundred forty-five million, eight hundred seventy-three thousand, six hundred eighty-eight".