145800030 has 32 divisors (see below), whose sum is σ = 354355200. Its totient is φ = 38387232.

The previous prime is 145800001. The next prime is 145800043. The reversal of 145800030 is 30008541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28390 + ... + 33129.

It is an arithmetic number, because the mean of its divisors is an integer number (11073600).

Almost surely, 2^145800030 is an apocalyptic number.

145800030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145800030 is an abundant number, since it is smaller than the sum of its proper divisors (208555170).

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

145800030 is a wasteful number, since it uses less digits than its factorization.

145800030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61608.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145800030 is about 12074.7683207588. The cubic root of 145800030 is about 526.3232289773.

Adding to 145800030 its reverse (30008541), we get a palindrome (175808571).

The spelling of 145800030 in words is "one hundred forty-five million, eight hundred thousand, thirty".