145504373 has 16 divisors (see below), whose sum is σ = 170649600. Its totient is φ = 124009200.

The previous prime is 145504361. The next prime is 145504379. The reversal of 145504373 is 373405541.

It is not a de Polignac number, because 145504373 - 2⁴ = 145504357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145504379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64403 + ... + 66623.

It is an arithmetic number, because the mean of its divisors is an integer number (10665600).

Almost surely, 2^145504373 is an apocalyptic number.

It is an amenable number.

145504373 is a deficient number, since it is larger than the sum of its proper divisors (25145227).

145504373 is an equidigital number, since it uses as much as digits as its factorization.

145504373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 145504373 is about 12062.5193471347. The cubic root of 145504373 is about 525.9672243646.

The spelling of 145504373 in words is "one hundred forty-five million, five hundred four thousand, three hundred seventy-three".