273497631 has 12 divisors (see below), whose sum is σ = 400829016. Its totient is φ = 165755920.

The previous prime is 273497569. The next prime is 273497633. The reversal of 273497631 is 136794372.

It is not a de Polignac number, because 273497631 - 2¹¹ = 273495583 is a prime.

It is a super-2 number, since 2×273497631² = 149601908325224322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273497633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 376356 + ... + 377081.

It is an arithmetic number, because the mean of its divisors is an integer number (33402418).

Almost surely, 2^273497631 is an apocalyptic number.

273497631 is a deficient number, since it is larger than the sum of its proper divisors (127331385).

273497631 is a wasteful number, since it uses less digits than its factorization.

273497631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753462 (or 753451 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 273497631 is about 16537.7637847443. The cubic root of 273497631 is about 649.1093371281.

It can be divided in two parts, 27349 and 7631, that added together give a triangular number (34980 = T₂₆₄).

The spelling of 273497631 in words is "two hundred seventy-three million, four hundred ninety-seven thousand, six hundred thirty-one".