1249085953 has 2 divisors, whose sum is σ = 1249085954. Its totient is φ = 1249085952.

The previous prime is 1249085861. The next prime is 1249085969. The reversal of 1249085953 is 3595809421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1150023744 + 99062209 = 33912^2 + 9953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1249085953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1249085993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624542976 + 624542977.

It is an arithmetic number, because the mean of its divisors is an integer number (624542977).

Almost surely, 2^1249085953 is an apocalyptic number.

It is an amenable number.

1249085953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249085953 is an equidigital number, since it uses as much as digits as its factorization.

1249085953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 1249085953 is about 35342.4101187228. The cubic root of 1249085953 is about 1076.9547137149.

The spelling of 1249085953 in words is "one billion, two hundred forty-nine million, eighty-five thousand, nine hundred fifty-three".