1344140737 has 4 divisors (see below), whose sum is σ = 1357997956. Its totient is φ = 1330283520.

The previous prime is 1344140729. The next prime is 1344140753. The reversal of 1344140737 is 7370414431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 953327376 + 390813361 = 30876^2 + 19769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344140737 - 2³ = 1344140729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344140767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6928464 + ... + 6928657.

It is an arithmetic number, because the mean of its divisors is an integer number (339499489).

Almost surely, 2^1344140737 is an apocalyptic number.

It is an amenable number.

1344140737 is a deficient number, since it is larger than the sum of its proper divisors (13857219).

1344140737 is an equidigital number, since it uses as much as digits as its factorization.

1344140737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13857218.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 1344140737 is about 36662.5249676015. The cubic root of 1344140737 is about 1103.6081893183.

The spelling of 1344140737 in words is "one billion, three hundred forty-four million, one hundred forty thousand, seven hundred thirty-seven".