136455343554631 has 4 divisors (see below), whose sum is σ = 136455366960000. Its totient is φ = 136455320149264.

The previous prime is 136455343554619. The next prime is 136455343554763.

136455343554631 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 136455343554631 - 2¹⁵ = 136455343521863 is a prime.

It is a super-2 number, since 2×136455343554631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136455343554331) 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, 4793370 + ... + 17201368.

It is an arithmetic number, because the mean of its divisors is an integer number (34113841740000).

Almost surely, 2^{136455343554631} is an apocalyptic number.

136455343554631 is a deficient number, since it is larger than the sum of its proper divisors (23405369).

136455343554631 is a wasteful number, since it uses less digits than its factorization.

136455343554631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23405368.

The product of its digits is 116640000, while the sum is 58.

The spelling of 136455343554631 in words is "one hundred thirty-six trillion, four hundred fifty-five billion, three hundred forty-three million, five hundred fifty-four thousand, six hundred thirty-one".