145858716 has 18 divisors (see below), whose sum is σ = 368698512. Its totient is φ = 48619560.

The previous prime is 145858697. The next prime is 145858721. The reversal of 145858716 is 617858541.

145858716 is a `hidden beast` number, since 1 + 4 + 58 + 587 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 2025780 + ... + 2025851.

Almost surely, 2^145858716 is an apocalyptic number.

It is an amenable number.

145858716 is an abundant number, since it is smaller than the sum of its proper divisors (222839796).

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

145858716 is a wasteful number, since it uses less digits than its factorization.

145858716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051641 (or 4051636 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 145858716 is about 12077.1981850096. The cubic root of 145858716 is about 526.3938363284.

The spelling of 145858716 in words is "one hundred forty-five million, eight hundred fifty-eight thousand, seven hundred sixteen".