1374395849 has 2 divisors, whose sum is σ = 1374395850. Its totient is φ = 1374395848.

The previous prime is 1374395773. The next prime is 1374395851. The reversal of 1374395849 is 9485934731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1168272400 + 206123449 = 34180^2 + 14357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1374395849 is a prime.

Together with 1374395851, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1374395849.

It is not a weakly prime, because it can be changed into another prime (1374395149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687197924 + 687197925.

It is an arithmetic number, because the mean of its divisors is an integer number (687197925).

Almost surely, 2^1374395849 is an apocalyptic number.

It is an amenable number.

1374395849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374395849 is an equidigital number, since it uses as much as digits as its factorization.

1374395849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The square root of 1374395849 is about 37072.8451700163. The cubic root of 1374395849 is about 1111.8271584202.

The spelling of 1374395849 in words is "one billion, three hundred seventy-four million, three hundred ninety-five thousand, eight hundred forty-nine".