1371949867 has 2 divisors, whose sum is σ = 1371949868. Its totient is φ = 1371949866.

The previous prime is 1371949849. The next prime is 1371949871. The reversal of 1371949867 is 7689491731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1371949867 - 2¹⁹ = 1371425579 is a prime.

It is a super-2 number, since 2×1371949867² = 3764492875122635378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1371949807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685974933 + 685974934.

It is an arithmetic number, because the mean of its divisors is an integer number (685974934).

Almost surely, 2^1371949867 is an apocalyptic number.

1371949867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371949867 is an equidigital number, since it uses as much as digits as its factorization.

1371949867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 55.

The square root of 1371949867 is about 37039.8416168320. The cubic root of 1371949867 is about 1111.1672019991.

The spelling of 1371949867 in words is "one billion, three hundred seventy-one million, nine hundred forty-nine thousand, eight hundred sixty-seven".