145000273 has 4 divisors (see below), whose sum is σ = 158182128. Its totient is φ = 131818420.

The previous prime is 145000249. The next prime is 145000277. The reversal of 145000273 is 372000541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145000273 - 2⁹ = 144999761 is a prime.

It is a Duffinian number.

145000273 is a modest number, since divided by 273 gives 145 as remainder.

It is not an unprimeable number, because it can be changed into a prime (145000277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6590911 + ... + 6590932.

It is an arithmetic number, because the mean of its divisors is an integer number (39545532).

Almost surely, 2^145000273 is an apocalyptic number.

It is an amenable number.

145000273 is a deficient number, since it is larger than the sum of its proper divisors (13181855).

145000273 is a wasteful number, since it uses less digits than its factorization.

145000273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13181854.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 145000273 is about 12041.6059144950. The cubic root of 145000273 is about 525.3591169570.

The spelling of 145000273 in words is "one hundred forty-five million, two hundred seventy-three", and thus it is an aban number.