145552616 has 64 divisors (see below), whose sum is σ = 315532800. Its totient is φ = 62251200.

The previous prime is 145552613. The next prime is 145552619. The reversal of 145552616 is 616255541.

145552616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145552613) and next prime (145552619).

It is not an unprimeable number, because it can be changed into a prime (145552613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439571 + ... + 439901.

It is an arithmetic number, because the mean of its divisors is an integer number (4930200).

Almost surely, 2^145552616 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 145552616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157766400).

145552616 is an abundant number, since it is smaller than the sum of its proper divisors (169980184).

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

145552616 is a wasteful number, since it uses less digits than its factorization.

145552616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 626 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 145552616 is about 12064.5188880452. The cubic root of 145552616 is about 526.0253473210.

It can be divided in two parts, 14555 and 2616, that added together give a palindrome (17171).

The spelling of 145552616 in words is "one hundred forty-five million, five hundred fifty-two thousand, six hundred sixteen".