1344551149 has 2 divisors, whose sum is σ = 1344551150. Its totient is φ = 1344551148.

The previous prime is 1344551141. The next prime is 1344551183. The reversal of 1344551149 is 9411554431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 822657124 + 521894025 = 28682^2 + 22845^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344551149 - 2³ = 1344551141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344551141) 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, 672275574 + 672275575.

It is an arithmetic number, because the mean of its divisors is an integer number (672275575).

Almost surely, 2^1344551149 is an apocalyptic number.

It is an amenable number.

1344551149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344551149 is an equidigital number, since it uses as much as digits as its factorization.

1344551149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The square root of 1344551149 is about 36668.1216999180. The cubic root of 1344551149 is about 1103.7205009587.

The spelling of 1344551149 in words is "one billion, three hundred forty-four million, five hundred fifty-one thousand, one hundred forty-nine".