145680174 has 64 divisors (see below), whose sum is σ = 352123200. Its totient is φ = 44457984.

The previous prime is 145680169. The next prime is 145680181. The reversal of 145680174 is 471086541.

It is a happy number.

It is a congruent number.

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, 31822 + ... + 36110.

It is an arithmetic number, because the mean of its divisors is an integer number (5501925).

Almost surely, 2^145680174 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145680174, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176061600).

145680174 is an abundant number, since it is smaller than the sum of its proper divisors (206443026).

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

145680174 is a wasteful number, since it uses less digits than its factorization.

145680174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354 (or 4348 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 145680174 is about 12069.8042237644. The cubic root of 145680174 is about 526.1789667967.

The spelling of 145680174 in words is "one hundred forty-five million, six hundred eighty thousand, one hundred seventy-four".