293431306249 has 3 divisors (see below), whose sum is σ = 293431847943. Its totient is φ = 293430764556.

The previous prime is 293431306247. The next prime is 293431306277. The reversal of 293431306249 is 942603134392.

The square root of 293431306249 is 541693.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 34419525625 + 259011780624 = 185525^2 + 508932^2 .

It is not a de Polignac number, because 293431306249 - 2¹ = 293431306247 is a prime.

It is a super-2 number, since 2×293431306249² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 293431306199 and 293431306208.

It is not an unprimeable number, because it can be changed into a prime (293431306247) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 270847 + ... + 812539.

It is an arithmetic number, because the mean of its divisors is an integer number (97810615981).

Almost surely, 2^293431306249 is an apocalyptic number.

293431306249 is the 541693-rd square number.

293431306249 is the 270847-th centered octagonal number.

It is an amenable number.

293431306249 is a deficient number, since it is larger than the sum of its proper divisors (541694).

293431306249 is an frugal number, since it uses more digits than its factorization.

293431306249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083386 (or 541693 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 293431306249 in words is "two hundred ninety-three billion, four hundred thirty-one million, three hundred six thousand, two hundred forty-nine".