1048191149 has 2 divisors, whose sum is σ = 1048191150. Its totient is φ = 1048191148.

The previous prime is 1048191119. The next prime is 1048191161. The reversal of 1048191149 is 9411918401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 536617225 + 511573924 = 23165^2 + 22618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1048191149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1048191119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524095574 + 524095575.

It is an arithmetic number, because the mean of its divisors is an integer number (524095575).

Almost surely, 2^1048191149 is an apocalyptic number.

It is an amenable number.

1048191149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048191149 is an equidigital number, since it uses as much as digits as its factorization.

1048191149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 1048191149 is about 32375.7802840333. The cubic root of 1048191149 is about 1015.8123675067.

The spelling of 1048191149 in words is "one billion, forty-eight million, one hundred ninety-one thousand, one hundred forty-nine".