1381069 has 2 divisors, whose sum is σ = 1381070. Its totient is φ = 1381068.

The previous prime is 1381057. The next prime is 1381103. The reversal of 1381069 is 9601831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 925444 + 455625 = 962^2 + 675^2 .

It is a cyclic number.

It is not a de Polignac number, because 1381069 - 2⁹ = 1380557 is a prime.

It is a super-2 number, since 2×1381069² = 3814703165522, which contains 22 as substring.

1381069 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1381769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690534 + 690535.

It is an arithmetic number, because the mean of its divisors is an integer number (690535).

2^1381069 is an apocalyptic number.

It is an amenable number.

1381069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381069 is an equidigital number, since it uses as much as digits as its factorization.

1381069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1381069 is about 1175.1889209825. The cubic root of 1381069 is about 111.3623684734.

It can be divided in two parts, 13810 and 69, that multiplied together give a triangular number (952890 = T₁₃₈₀).

The spelling of 1381069 in words is "one million, three hundred eighty-one thousand, sixty-nine".