273880145 has 32 divisors (see below), whose sum is σ = 414408960. Its totient is φ = 168791040.

The previous prime is 273880141. The next prime is 273880151. The reversal of 273880145 is 541088372.

It is not a de Polignac number, because 273880145 - 2² = 273880141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 273880099 and 273880108.

It is not an unprimeable number, because it can be changed into a prime (273880141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30269 + ... + 38261.

It is an arithmetic number, because the mean of its divisors is an integer number (12950280).

Almost surely, 2^273880145 is an apocalyptic number.

It is an amenable number.

273880145 is a deficient number, since it is larger than the sum of its proper divisors (140528815).

273880145 is a wasteful number, since it uses less digits than its factorization.

273880145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8105.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 273880145 is about 16549.3246085754. The cubic root of 273880145 is about 649.4118111001.

The spelling of 273880145 in words is "two hundred seventy-three million, eight hundred eighty thousand, one hundred forty-five".