1084869251 has 2 divisors, whose sum is σ = 1084869252. Its totient is φ = 1084869250.

The previous prime is 1084869209. The next prime is 1084869259. The reversal of 1084869251 is 1529684801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1084869251 - 2¹⁰ = 1084868227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1084869259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542434625 + 542434626.

It is an arithmetic number, because the mean of its divisors is an integer number (542434626).

Almost surely, 2^1084869251 is an apocalyptic number.

1084869251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1084869251 is an equidigital number, since it uses as much as digits as its factorization.

1084869251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 1084869251 is about 32937.3534304139. The cubic root of 1084869251 is about 1027.5251643227.

The spelling of 1084869251 in words is "one billion, eighty-four million, eight hundred sixty-nine thousand, two hundred fifty-one".