249470513293 has 2 divisors, whose sum is σ = 249470513294. Its totient is φ = 249470513292.

The previous prime is 249470513273. The next prime is 249470513329. The reversal of 249470513293 is 392315074942.

249470513293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (249470513329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130995496489 + 118475016804 = 361933^2 + 344202^2 .

It is a cyclic number.

It is not a de Polignac number, because 249470513293 - 2⁵ = 249470513261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249470513233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124735256646 + 124735256647.

It is an arithmetic number, because the mean of its divisors is an integer number (124735256647).

Almost surely, 2^249470513293 is an apocalyptic number.

It is an amenable number.

249470513293 is a deficient number, since it is larger than the sum of its proper divisors (1).

249470513293 is an equidigital number, since it uses as much as digits as its factorization.

249470513293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 249470513293 in words is "two hundred forty-nine billion, four hundred seventy million, five hundred thirteen thousand, two hundred ninety-three".