145722 has 16 divisors (see below), whose sum is σ = 295200. Its totient is φ = 47952.

The previous prime is 145721. The next prime is 145723. The reversal of 145722 is 227541.

145722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145721) and next prime (145723).

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813 + ... + 975.

It is an arithmetic number, because the mean of its divisors is an integer number (18450).

2¹⁴⁵⁷²² is an apocalyptic number.

145722 is an abundant number, since it is smaller than the sum of its proper divisors (149478).

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

145722 is a wasteful number, since it uses less digits than its factorization.

145722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317.

The product of its digits is 560, while the sum is 21.

The square root of 145722 is about 381.7355105305. The cubic root of 145722 is about 52.6229318777.

It can be divided in two parts, 14 and 5722, that multiplied together give a palindrome (80108).

The spelling of 145722 in words is "one hundred forty-five thousand, seven hundred twenty-two".