1078450249 has 2 divisors, whose sum is σ = 1078450250. Its totient is φ = 1078450248.

The previous prime is 1078450237. The next prime is 1078450253. The reversal of 1078450249 is 9420548701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650250000 + 428200249 = 25500^2 + 20693^2 .

It is an emirp because it is prime and its reverse (9420548701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1078450249 - 2¹⁵ = 1078417481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1078450349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539225124 + 539225125.

It is an arithmetic number, because the mean of its divisors is an integer number (539225125).

Almost surely, 2^1078450249 is an apocalyptic number.

It is an amenable number.

1078450249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078450249 is an equidigital number, since it uses as much as digits as its factorization.

1078450249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1078450249 is about 32839.7662750513. The cubic root of 1078450249 is about 1025.4945855050.

The spelling of 1078450249 in words is "one billion, seventy-eight million, four hundred fifty thousand, two hundred forty-nine".