1158725251 has 2 divisors, whose sum is σ = 1158725252. Its totient is φ = 1158725250.

The previous prime is 1158725179. The next prime is 1158725291. The reversal of 1158725251 is 1525278511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1158725251 - 2¹⁹ = 1158200963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1158725251.

It is not a weakly prime, because it can be changed into another prime (1158725291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579362625 + 579362626.

It is an arithmetic number, because the mean of its divisors is an integer number (579362626).

Almost surely, 2^1158725251 is an apocalyptic number.

1158725251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158725251 is an equidigital number, since it uses as much as digits as its factorization.

1158725251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 37.

The square root of 1158725251 is about 34040.0536280424. The cubic root of 1158725251 is about 1050.3325480304.

The spelling of 1158725251 in words is "one billion, one hundred fifty-eight million, seven hundred twenty-five thousand, two hundred fifty-one".