145867273 has 8 divisors (see below), whose sum is σ = 149760000. Its totient is φ = 142007520.

The previous prime is 145867243. The next prime is 145867297. The reversal of 145867273 is 372768541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145867273 is a prime.

It is a super-2 number, since 2×145867273² = 42554522664913058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145867243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853 + ... + 17101.

It is an arithmetic number, because the mean of its divisors is an integer number (18720000).

Almost surely, 2^145867273 is an apocalyptic number.

It is an amenable number.

145867273 is a deficient number, since it is larger than the sum of its proper divisors (3892727).

145867273 is a wasteful number, since it uses less digits than its factorization.

145867273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16487.

The product of its digits is 282240, while the sum is 43.

The square root of 145867273 is about 12077.5524424446. The cubic root of 145867273 is about 526.4041299973.

The spelling of 145867273 in words is "one hundred forty-five million, eight hundred sixty-seven thousand, two hundred seventy-three".