145830538 has 16 divisors (see below), whose sum is σ = 250974144. Its totient is φ = 62254080.

The previous prime is 145830533. The next prime is 145830547. The reversal of 145830538 is 835038541.

It is a junction number, because it is equal to n+sod(n) for n = 145830497 and 145830506.

It is not an unprimeable number, because it can be changed into a prime (145830533) 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, 16668 + ... + 23863.

It is an arithmetic number, because the mean of its divisors is an integer number (15685884).

Almost surely, 2^145830538 is an apocalyptic number.

145830538 is a deficient number, since it is larger than the sum of its proper divisors (105143606).

145830538 is a wasteful number, since it uses less digits than its factorization.

145830538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40797.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 145830538 is about 12076.0315501410. The cubic root of 145830538 is about 526.3599366726.

The spelling of 145830538 in words is "one hundred forty-five million, eight hundred thirty thousand, five hundred thirty-eight".