145472 has 14 divisors (see below), whose sum is σ = 288798. Its totient is φ = 72704.

The previous prime is 145471. The next prime is 145477. The reversal of 145472 is 274541.

It can be written as a sum of positive squares in only one way, i.e., 141376 + 4096 = 376^2 + 64^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073 + ... + 1200.

2¹⁴⁵⁴⁷² is an apocalyptic number.

It is an amenable number.

145472 is a deficient number, since it is larger than the sum of its proper divisors (143326).

145472 is an equidigital number, since it uses as much as digits as its factorization.

145472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285 (or 2275 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 145472 is about 381.4079181139. The cubic root of 145472 is about 52.5928214312.

The spelling of 145472 in words is "one hundred forty-five thousand, four hundred seventy-two".