1344555631 has 2 divisors, whose sum is σ = 1344555632. Its totient is φ = 1344555630.

The previous prime is 1344555601. The next prime is 1344555671. The reversal of 1344555631 is 1365554431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1344555631 - 2⁷ = 1344555503 is a prime.

It is a super-2 number, since 2×1344555631² = 3615659689707616322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344555601) 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, 672277815 + 672277816.

It is an arithmetic number, because the mean of its divisors is an integer number (672277816).

Almost surely, 2^1344555631 is an apocalyptic number.

1344555631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344555631 is an equidigital number, since it uses as much as digits as its factorization.

1344555631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 37.

The square root of 1344555631 is about 36668.1828156237. The cubic root of 1344555631 is about 1103.7217273580.

The spelling of 1344555631 in words is "one billion, three hundred forty-four million, five hundred fifty-five thousand, six hundred thirty-one".