273121772 has 24 divisors (see below), whose sum is σ = 595902720. Its totient is φ = 106410960.

The previous prime is 273121763. The next prime is 273121777. The reversal of 273121772 is 277121372.

It is not an unprimeable number, because it can be changed into a prime (273121777) 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, 443072 + ... + 443687.

It is an arithmetic number, because the mean of its divisors is an integer number (24829280).

Almost surely, 2^273121772 is an apocalyptic number.

273121772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

273121772 is an abundant number, since it is smaller than the sum of its proper divisors (322780948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

273121772 is a wasteful number, since it uses less digits than its factorization.

273121772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886781 (or 886779 counting only the distinct ones).

The product of its digits is 8232, while the sum is 32.

The square root of 273121772 is about 16526.3962193819. The cubic root of 273121772 is about 648.8118507811.

The spelling of 273121772 in words is "two hundred seventy-three million, one hundred twenty-one thousand, seven hundred seventy-two".