136745547631 has 16 divisors (see below), whose sum is σ = 180516660480. Its totient is φ = 100287031680.

The previous prime is 136745547581. The next prime is 136745547643.

136745547631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 136745547631 - 2¹¹ = 136745545583 is a prime.

It is a super-2 number, since 2×136745547631² (a number of 23 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 (136745547031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52231521 + ... + 52234138.

It is an arithmetic number, because the mean of its divisors is an integer number (11282291280).

Almost surely, 2^136745547631 is an apocalyptic number.

136745547631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136745547631 is a deficient number, since it is larger than the sum of its proper divisors (43771112849).

136745547631 is a wasteful number, since it uses less digits than its factorization.

136745547631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104465694.

The product of its digits is 6350400, while the sum is 52.

The spelling of 136745547631 in words is "one hundred thirty-six billion, seven hundred forty-five million, five hundred forty-seven thousand, six hundred thirty-one".