145322530 has 16 divisors (see below), whose sum is σ = 262092024. Its totient is φ = 58015360.

The previous prime is 145322519. The next prime is 145322539. The reversal of 145322530 is 35223541.

It can be written as a sum of positive squares in 4 ways, for example, as 139972561 + 5349969 = 11831^2 + 2313^2 .

It is a super-2 number, since 2×145322530² = 42237275451201800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145322495 and 145322504.

It is not an unprimeable number, because it can be changed into a prime (145322539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8737 + ... + 19156.

Almost surely, 2^145322530 is an apocalyptic number.

145322530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145322530 is a deficient number, since it is larger than the sum of its proper divisors (116769494).

145322530 is a wasteful number, since it uses less digits than its factorization.

145322530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28421.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 145322530 is about 12054.9794690825. The cubic root of 145322530 is about 525.7480251590.

The spelling of 145322530 in words is "one hundred forty-five million, three hundred twenty-two thousand, five hundred thirty".