145173210 has 128 divisors (see below), whose sum is σ = 439617024. Its totient is φ = 29859840.

The previous prime is 145173199. The next prime is 145173211. The reversal of 145173210 is 12371541.

145173210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145173211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111282 + ... + 112578.

It is an arithmetic number, because the mean of its divisors is an integer number (3434508).

Almost surely, 2^145173210 is an apocalyptic number.

145173210 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 145173210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219808512).

145173210 is an abundant number, since it is smaller than the sum of its proper divisors (294443814).

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

145173210 is a wasteful number, since it uses less digits than its factorization.

145173210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 145173210 is about 12048.7845860070. The cubic root of 145173210 is about 525.5678934237.

The spelling of 145173210 in words is "one hundred forty-five million, one hundred seventy-three thousand, two hundred ten".