1356042481 has 2 divisors, whose sum is σ = 1356042482. Its totient is φ = 1356042480.

The previous prime is 1356042437. The next prime is 1356042491. The reversal of 1356042481 is 1842406531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1063803456 + 292239025 = 32616^2 + 17095^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356042481 - 2⁷ = 1356042353 is a prime.

It is a super-2 number, since 2×1356042481² = 3677702420553270722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1356042431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678021240 + 678021241.

It is an arithmetic number, because the mean of its divisors is an integer number (678021241).

Almost surely, 2^1356042481 is an apocalyptic number.

It is an amenable number.

1356042481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356042481 is an equidigital number, since it uses as much as digits as its factorization.

1356042481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1356042481 is about 36824.4820873288. The cubic root of 1356042481 is about 1106.8559355461.

The spelling of 1356042481 in words is "one billion, three hundred fifty-six million, forty-two thousand, four hundred eighty-one".