145161330 has 64 divisors (see below), whose sum is σ = 368634240. Its totient is φ = 36481536.

The previous prime is 145161319. The next prime is 145161343. The reversal of 145161330 is 33161541.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145161330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132264 + ... + 133356.

It is an arithmetic number, because the mean of its divisors is an integer number (5759910).

Almost surely, 2^145161330 is an apocalyptic number.

145161330 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 145161330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184317120).

145161330 is an abundant number, since it is smaller than the sum of its proper divisors (223472910).

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

145161330 is a wasteful number, since it uses less digits than its factorization.

145161330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 145161330 is about 12048.2915801370. The cubic root of 145161330 is about 525.5535567177.

The spelling of 145161330 in words is "one hundred forty-five million, one hundred sixty-one thousand, three hundred thirty".