273485137 has 4 divisors (see below), whose sum is σ = 289572516. Its totient is φ = 257397760.

The previous prime is 273485099. The next prime is 273485153. The reversal of 273485137 is 731584372.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 202521361 + 70963776 = 14231^2 + 8424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273485137 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 273485137.

It is not an unprimeable number, because it can be changed into a prime (273485837) 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, 8043664 + ... + 8043697.

It is an arithmetic number, because the mean of its divisors is an integer number (72393129).

Almost surely, 2^273485137 is an apocalyptic number.

It is an amenable number.

273485137 is a deficient number, since it is larger than the sum of its proper divisors (16087379).

273485137 is a wasteful number, since it uses less digits than its factorization.

273485137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16087378.

The product of its digits is 141120, while the sum is 40.

The square root of 273485137 is about 16537.3860389120. The cubic root of 273485137 is about 649.0994527091.

The spelling of 273485137 in words is "two hundred seventy-three million, four hundred eighty-five thousand, one hundred thirty-seven".