145324530 has 160 divisors (see below), whose sum is σ = 433352304. Its totient is φ = 34712064.

The previous prime is 145324519. The next prime is 145324537. The reversal of 145324530 is 35423541.

It can be written as a sum of positive squares in 8 ways, for example, as 70207641 + 75116889 = 8379^2 + 8667^2 .

It is a super-2 number, since 2×145324530² = 42238438039441800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 145324494 and 145324503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145324537) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 389424 + ... + 389796.

Almost surely, 2^145324530 is an apocalyptic number.

145324530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145324530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216676152).

145324530 is an abundant number, since it is smaller than the sum of its proper divisors (288027774).

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

145324530 is a wasteful number, since it uses less digits than its factorization.

145324530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 145324530 is about 12055.0624220698. The cubic root of 145324530 is about 525.7504370154.

The spelling of 145324530 in words is "one hundred forty-five million, three hundred twenty-four thousand, five hundred thirty".