1344872149 has 2 divisors, whose sum is σ = 1344872150. Its totient is φ = 1344872148.

The previous prime is 1344872021. The next prime is 1344872197. The reversal of 1344872149 is 9412784431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1134477124 + 210395025 = 33682^2 + 14505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344872149 - 2⁷ = 1344872021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344872449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672436074 + 672436075.

It is an arithmetic number, because the mean of its divisors is an integer number (672436075).

Almost surely, 2^1344872149 is an apocalyptic number.

It is an amenable number.

1344872149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344872149 is an equidigital number, since it uses as much as digits as its factorization.

1344872149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 1344872149 is about 36672.4985377326. The cubic root of 1344872149 is about 1103.8083285557.

The spelling of 1344872149 in words is "one billion, three hundred forty-four million, eight hundred seventy-two thousand, one hundred forty-nine".