145727 has 4 divisors (see below), whose sum is σ = 149160. Its totient is φ = 142296.

The previous prime is 145723. The next prime is 145753. The reversal of 145727 is 727541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145727 - 2² = 145723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145696 and 145705.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145727.

It is not an unprimeable number, because it can be changed into a prime (145721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652 + ... + 1737.

It is an arithmetic number, because the mean of its divisors is an integer number (37290).

2¹⁴⁵⁷²⁷ is an apocalyptic number.

145727 is a deficient number, since it is larger than the sum of its proper divisors (3433).

145727 is an equidigital number, since it uses as much as digits as its factorization.

145727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its digits is 1960, while the sum is 26.

The square root of 145727 is about 381.7420595114. The cubic root of 145727 is about 52.6235337352.

The spelling of 145727 in words is "one hundred forty-five thousand, seven hundred twenty-seven".