273222945 has 48 divisors (see below), whose sum is σ = 501096960. Its totient is φ = 137334528.

The previous prime is 273222941. The next prime is 273222947. The reversal of 273222945 is 549222372.

It is not a de Polignac number, because 273222945 - 2² = 273222941 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (273222941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189949 + ... + 191381.

It is an arithmetic number, because the mean of its divisors is an integer number (10439520).

Almost surely, 2^273222945 is an apocalyptic number.

It is an amenable number.

273222945 is a deficient number, since it is larger than the sum of its proper divisors (227874015).

273222945 is a wasteful number, since it uses less digits than its factorization.

273222945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686 (or 1683 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 273222945 is about 16529.4568876294. The cubic root of 273222945 is about 648.8919544131.

The spelling of 273222945 in words is "two hundred seventy-three million, two hundred twenty-two thousand, nine hundred forty-five".