145322 has 4 divisors (see below), whose sum is σ = 217986. Its totient is φ = 72660.

The previous prime is 145307. The next prime is 145349. The reversal of 145322 is 223541.

145322 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223541 = 31 ⋅7211.

It can be written as a sum of positive squares in only one way, i.e., 143641 + 1681 = 379^2 + 41^2 .

It is a super-2 number, since 2×145322² = 42236967368, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 145322.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36329 + ... + 36332.

2¹⁴⁵³²² is an apocalyptic number.

145322 is a deficient number, since it is larger than the sum of its proper divisors (72664).

145322 is an equidigital number, since it uses as much as digits as its factorization.

145322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72663.

The product of its digits is 240, while the sum is 17.

The square root of 145322 is about 381.2112275367. The cubic root of 145322 is about 52.5747386013.

Adding to 145322 its reverse (223541), we get a palindrome (368863).

The spelling of 145322 in words is "one hundred forty-five thousand, three hundred twenty-two".