146722 has 4 divisors (see below), whose sum is σ = 220086. Its totient is φ = 73360.

The previous prime is 146719. The next prime is 146743. The reversal of 146722 is 227641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227641 = 233 ⋅977.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 43681 = 321^2 + 209^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 146693 and 146702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36679 + ... + 36682.

2¹⁴⁶⁷²² is an apocalyptic number.

146722 is a deficient number, since it is larger than the sum of its proper divisors (73364).

146722 is an equidigital number, since it uses as much as digits as its factorization.

146722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73363.

The product of its digits is 672, while the sum is 22.

The square root of 146722 is about 383.0430785173. The cubic root of 146722 is about 52.7430304576.

It can be divided in two parts, 146 and 722, that added together give a palindrome (868).

The spelling of 146722 in words is "one hundred forty-six thousand, seven hundred twenty-two".