145530616 has 64 divisors (see below), whose sum is σ = 351221760. Its totient is φ = 54864000.

The previous prime is 145530611. The next prime is 145530631. The reversal of 145530616 is 616035541.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145530611) 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, 15286 + ... + 22906.

It is an arithmetic number, because the mean of its divisors is an integer number (5487840).

Almost surely, 2^145530616 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 145530616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175610880).

145530616 is an abundant number, since it is smaller than the sum of its proper divisors (205691144).

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

145530616 is a wasteful number, since it uses less digits than its factorization.

145530616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7676 (or 7672 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 145530616 is about 12063.6070890924. The cubic root of 145530616 is about 525.9988434100.

The spelling of 145530616 in words is "one hundred forty-five million, five hundred thirty thousand, six hundred sixteen".