145922 has 12 divisors (see below), whose sum is σ = 254790. Its totient is φ = 62496.

The previous prime is 145903. The next prime is 145931. The reversal of 145922 is 229541.

It can be written as a sum of positive squares in only one way, i.e., 137641 + 8281 = 371^2 + 91^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 647 + ... + 842.

2¹⁴⁵⁹²² is an apocalyptic number.

145922 is a deficient number, since it is larger than the sum of its proper divisors (108868).

145922 is a wasteful number, since it uses less digits than its factorization.

145922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1498 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 145922 is about 381.9973821900. The cubic root of 145922 is about 52.6469954488.

The spelling of 145922 in words is "one hundred forty-five thousand, nine hundred twenty-two".