1349746961 has 2 divisors, whose sum is σ = 1349746962. Its totient is φ = 1349746960.

The previous prime is 1349746921. The next prime is 1349746963. The reversal of 1349746961 is 1696479431.

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., 1250046736 + 99700225 = 35356^2 + 9985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1349746961 - 2¹⁸ = 1349484817 is a prime.

Together with 1349746963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1349746963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674873480 + 674873481.

It is an arithmetic number, because the mean of its divisors is an integer number (674873481).

Almost surely, 2^1349746961 is an apocalyptic number.

It is an amenable number.

1349746961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1349746961 is an equidigital number, since it uses as much as digits as its factorization.

1349746961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 1349746961 is about 36738.9025557378. The cubic root of 1349746961 is about 1105.1403931554.

The spelling of 1349746961 in words is "one billion, three hundred forty-nine million, seven hundred forty-six thousand, nine hundred sixty-one".