145715816 has 16 divisors (see below), whose sum is σ = 276676800. Its totient is φ = 71935344.

The previous prime is 145715809. The next prime is 145715819. The reversal of 145715816 is 618517541.

145715816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145715816.

It is not an unprimeable number, because it can be changed into a prime (145715819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114650 + ... + 115913.

It is an arithmetic number, because the mean of its divisors is an integer number (17292300).

Almost surely, 2^145715816 is an apocalyptic number.

It is an amenable number.

145715816 is a deficient number, since it is larger than the sum of its proper divisors (130960984).

145715816 is a wasteful number, since it uses less digits than its factorization.

145715816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230648 (or 230644 counting only the distinct ones).

The product of its digits is 33600, while the sum is 38.

The square root of 145715816 is about 12071.2806280030. The cubic root of 145715816 is about 526.2218748122.

The spelling of 145715816 in words is "one hundred forty-five million, seven hundred fifteen thousand, eight hundred sixteen".