1341672749 has 2 divisors, whose sum is σ = 1341672750. Its totient is φ = 1341672748.

The previous prime is 1341672701. The next prime is 1341672751. The reversal of 1341672749 is 9472761431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1094617225 + 247055524 = 33085^2 + 15718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1341672749 is a prime.

Together with 1341672751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1341672779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670836374 + 670836375.

It is an arithmetic number, because the mean of its divisors is an integer number (670836375).

Almost surely, 2^1341672749 is an apocalyptic number.

It is an amenable number.

1341672749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341672749 is an equidigital number, since it uses as much as digits as its factorization.

1341672749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 1341672749 is about 36628.8513196906. The cubic root of 1341672749 is about 1102.9323274354.

The spelling of 1341672749 in words is "one billion, three hundred forty-one million, six hundred seventy-two thousand, seven hundred forty-nine".