134455523161 has 4 divisors (see below), whose sum is σ = 134533560592. Its totient is φ = 134377485732.

The previous prime is 134455523099. The next prime is 134455523221. The reversal of 134455523161 is 161325554431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161325554431 = 89 ⋅1812646679.

It is a cyclic number.

It is not a de Polignac number, because 134455523161 - 2³⁵ = 100095784793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134455523261) 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, 39016131 + ... + 39019576.

It is an arithmetic number, because the mean of its divisors is an integer number (33633390148).

Almost surely, 2^134455523161 is an apocalyptic number.

It is an amenable number.

134455523161 is a deficient number, since it is larger than the sum of its proper divisors (78037431).

134455523161 is an equidigital number, since it uses as much as digits as its factorization.

134455523161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78037430.

The product of its digits is 216000, while the sum is 40.

The spelling of 134455523161 in words is "one hundred thirty-four billion, four hundred fifty-five million, five hundred twenty-three thousand, one hundred sixty-one".