1370000381 has 2 divisors, whose sum is σ = 1370000382. Its totient is φ = 1370000380.

The previous prime is 1370000353. The next prime is 1370000393. The reversal of 1370000381 is 1830000731.

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., 748296025 + 621704356 = 27355^2 + 24934^2 .

It is a cyclic number.

It is not a de Polignac number, because 1370000381 - 2¹⁰ = 1369999357 is a prime.

It is a super-2 number, since 2×1370000381² = 3753802087880290322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1370000311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685000190 + 685000191.

It is an arithmetic number, because the mean of its divisors is an integer number (685000191).

Almost surely, 2^1370000381 is an apocalyptic number.

It is an amenable number.

1370000381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370000381 is an equidigital number, since it uses as much as digits as its factorization.

1370000381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1370000381 is about 37013.5161934124. The cubic root of 1370000381 is about 1110.6406444339.

The spelling of 1370000381 in words is "one billion, three hundred seventy million, three hundred eighty-one", and thus it is an aban number.