134645631 has 4 divisors (see below), whose sum is σ = 179527512. Its totient is φ = 89763752.

The previous prime is 134645597. The next prime is 134645633. The reversal of 134645631 is 136546431.

134645631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 134645631 - 2¹⁴ = 134629247 is a prime.

It is a super-2 number, since 2×134645631² = 36258891894776322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 134645592 and 134645601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134645633) 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, 22440936 + ... + 22440941.

It is an arithmetic number, because the mean of its divisors is an integer number (44881878).

Almost surely, 2^134645631 is an apocalyptic number.

134645631 is a deficient number, since it is larger than the sum of its proper divisors (44881881).

134645631 is an equidigital number, since it uses as much as digits as its factorization.

134645631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44881880.

The product of its digits is 25920, while the sum is 33.

The square root of 134645631 is about 11603.6904043498. The cubic root of 134645631 is about 512.5435295963.

The spelling of 134645631 in words is "one hundred thirty-four million, six hundred forty-five thousand, six hundred thirty-one".