1365231481 has 2 divisors, whose sum is σ = 1365231482. Its totient is φ = 1365231480.

The previous prime is 1365231457. The next prime is 1365231499. The reversal of 1365231481 is 1841325631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1017035881 + 348195600 = 31891^2 + 18660^2 .

It is a cyclic number.

It is not a de Polignac number, because 1365231481 - 2¹⁷ = 1365100409 is a prime.

It is a super-2 number, since 2×1365231481² = 3727713993426906722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1365231281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682615740 + 682615741.

It is an arithmetic number, because the mean of its divisors is an integer number (682615741).

Almost surely, 2^1365231481 is an apocalyptic number.

It is an amenable number.

1365231481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1365231481 is an equidigital number, since it uses as much as digits as its factorization.

1365231481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 1365231481 is about 36949.0389726174. The cubic root of 1365231481 is about 1109.3504521564.

The spelling of 1365231481 in words is "one billion, three hundred sixty-five million, two hundred thirty-one thousand, four hundred eighty-one".