145750 has 32 divisors (see below), whose sum is σ = 303264. Its totient is φ = 52000.

The previous prime is 145723. The next prime is 145753. The reversal of 145750 is 57541.

145750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145753) by changing a digit.

145750 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2724 + ... + 2776.

It is an arithmetic number, because the mean of its divisors is an integer number (9477).

2¹⁴⁵⁷⁵⁰ is an apocalyptic number.

145750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145750 is an abundant number, since it is smaller than the sum of its proper divisors (157514).

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

145750 is a wasteful number, since it uses less digits than its factorization.

145750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 145750 is about 381.7721833764. The cubic root of 145750 is about 52.6263021025.

Subtracting from 145750 its reverse (57541), we obtain a square (88209 = 297²).

The spelling of 145750 in words is "one hundred forty-five thousand, seven hundred fifty".