136455040152643 has 4 divisors (see below), whose sum is σ = 136664006524128. Its totient is φ = 136246073781160.

The previous prime is 136455040152631. The next prime is 136455040152661. The reversal of 136455040152643 is 346251040554631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136455040152643 - 2⁹ = 136455040152131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136455040552643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104483184763 + ... + 104483186068.

It is an arithmetic number, because the mean of its divisors is an integer number (34166001631032).

Almost surely, 2^{136455040152643} is an apocalyptic number.

136455040152643 is a deficient number, since it is larger than the sum of its proper divisors (208966371485).

136455040152643 is an equidigital number, since it uses as much as digits as its factorization.

136455040152643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208966371484.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 136455040152643 in words is "one hundred thirty-six trillion, four hundred fifty-five billion, forty million, one hundred fifty-two thousand, six hundred forty-three".