145352073 has 8 divisors (see below), whose sum is σ = 193881600. Its totient is φ = 96861968.

The previous prime is 145352063. The next prime is 145352099. The reversal of 145352073 is 370253541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145352073 - 2¹⁷ = 145221001 is a prime.

It is a super-2 number, since 2×145352073² = 42254450250794658, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145352073.

It is not an unprimeable number, because it can be changed into a prime (145352003) 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 7 ways as a sum of consecutive naturals, for example, 223 + ... + 17051.

It is an arithmetic number, because the mean of its divisors is an integer number (24235200).

Almost surely, 2^145352073 is an apocalyptic number.

It is an amenable number.

145352073 is a deficient number, since it is larger than the sum of its proper divisors (48529527).

145352073 is a wasteful number, since it uses less digits than its factorization.

145352073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19711.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 145352073 is about 12056.2047510815. The cubic root of 145352073 is about 525.7836496455.

The spelling of 145352073 in words is "one hundred forty-five million, three hundred fifty-two thousand, seventy-three".