145674 has 12 divisors (see below), whose sum is σ = 315666. Its totient is φ = 48552.

The previous prime is 145661. The next prime is 145679. The reversal of 145674 is 476541.

It can be written as a sum of positive squares in only one way, i.e., 127449 + 18225 = 357^2 + 135^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4029 + ... + 4064.

2¹⁴⁵⁶⁷⁴ is an apocalyptic number.

145674 is an abundant number, since it is smaller than the sum of its proper divisors (169992).

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

145674 is a wasteful number, since it uses less digits than its factorization.

145674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8101 (or 8098 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 145674 is about 381.6726345967. The cubic root of 145674 is about 52.6171533447.

The spelling of 145674 in words is "one hundred forty-five thousand, six hundred seventy-four".