1344039161 has 4 divisors (see below), whose sum is σ = 1344175872. Its totient is φ = 1343902452.

The previous prime is 1344039149. The next prime is 1344039173. The reversal of 1344039161 is 1619304431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1619304431 = 19 ⋅85226549.

It is an interprime number because it is at equal distance from previous prime (1344039149) and next prime (1344039173).

It is a cyclic number.

It is not a de Polignac number, because 1344039161 - 2²⁶ = 1276930297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344039101) 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, 52361 + ... + 73686.

It is an arithmetic number, because the mean of its divisors is an integer number (336043968).

Almost surely, 2^1344039161 is an apocalyptic number.

It is an amenable number.

1344039161 is a deficient number, since it is larger than the sum of its proper divisors (136711).

1344039161 is a wasteful number, since it uses less digits than its factorization.

1344039161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136710.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1344039161 is about 36661.1396576811. The cubic root of 1344039161 is about 1103.5803889235.

The spelling of 1344039161 in words is "one billion, three hundred forty-four million, thirty-nine thousand, one hundred sixty-one".