1373887049 has 2 divisors, whose sum is σ = 1373887050. Its totient is φ = 1373887048.

The previous prime is 1373887007. The next prime is 1373887051. The reversal of 1373887049 is 9407883731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 750486025 + 623401024 = 27395^2 + 24968^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373887049 - 2⁸ = 1373886793 is a prime.

Together with 1373887051, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1373886988 and 1373887006.

It is not a weakly prime, because it can be changed into another prime (1373887069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686943524 + 686943525.

It is an arithmetic number, because the mean of its divisors is an integer number (686943525).

Almost surely, 2^1373887049 is an apocalyptic number.

It is an amenable number.

1373887049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373887049 is an equidigital number, since it uses as much as digits as its factorization.

1373887049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 1373887049 is about 37065.9823692830. The cubic root of 1373887049 is about 1111.6899423773.

The spelling of 1373887049 in words is "one billion, three hundred seventy-three million, eight hundred eighty-seven thousand, forty-nine".