249388000139 has 2 divisors, whose sum is σ = 249388000140. Its totient is φ = 249388000138.

The previous prime is 249388000051. The next prime is 249388000187. The reversal of 249388000139 is 931000883942.

It is a happy number.

249388000139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249388000139 - 2¹⁶ = 249387934603 is a prime.

It is a super-2 number, since 2×249388000139² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 249388000093 and 249388000102.

It is not a weakly prime, because it can be changed into another prime (249388000339) 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, 124694000069 + 124694000070.

It is an arithmetic number, because the mean of its divisors is an integer number (124694000070).

Almost surely, 2^249388000139 is an apocalyptic number.

249388000139 is a deficient number, since it is larger than the sum of its proper divisors (1).

249388000139 is an equidigital number, since it uses as much as digits as its factorization.

249388000139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 249388000139 in words is "two hundred forty-nine billion, three hundred eighty-eight million, one hundred thirty-nine", and thus it is an aban number.