145675816 has 64 divisors (see below), whose sum is σ = 332035200. Its totient is φ = 59001600.

The previous prime is 145675801. The next prime is 145675819. The reversal of 145675816 is 618576541.

It is not an unprimeable number, because it can be changed into a prime (145675819) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30981 + ... + 35371.

It is an arithmetic number, because the mean of its divisors is an integer number (5188050).

Almost surely, 2^145675816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145675816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166017600).

145675816 is an abundant number, since it is smaller than the sum of its proper divisors (186359384).

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

145675816 is a wasteful number, since it uses less digits than its factorization.

145675816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450 (or 4446 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 145675816 is about 12069.6236892457. The cubic root of 145675816 is about 526.1737198901.

The spelling of 145675816 in words is "one hundred forty-five million, six hundred seventy-five thousand, eight hundred sixteen".