135450643 has 2 divisors, whose sum is σ = 135450644. Its totient is φ = 135450642.

The previous prime is 135450587. The next prime is 135450647. The reversal of 135450643 is 346054531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135450643 - 2¹⁷ = 135319571 is a prime.

It is a super-2 number, since 2×135450643² = 36693753378226898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135450647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67725321 + 67725322.

It is an arithmetic number, because the mean of its divisors is an integer number (67725322).

Almost surely, 2^135450643 is an apocalyptic number.

135450643 is a deficient number, since it is larger than the sum of its proper divisors (1).

135450643 is an equidigital number, since it uses as much as digits as its factorization.

135450643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 135450643 is about 11638.3264690418. The cubic root of 135450643 is about 513.5629564801.

The spelling of 135450643 in words is "one hundred thirty-five million, four hundred fifty thousand, six hundred forty-three".