123564161134 has 8 divisors (see below), whose sum is σ = 185357174400. Its totient is φ = 61778436336.

The previous prime is 123564161117. The next prime is 123564161141. The reversal of 123564161134 is 431161465321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123564161093 and 123564161102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779534 + ... + 1847665.

It is an arithmetic number, because the mean of its divisors is an integer number (23169646800).

Almost surely, 2^123564161134 is an apocalyptic number.

123564161134 is a deficient number, since it is larger than the sum of its proper divisors (61793013266).

123564161134 is a wasteful number, since it uses less digits than its factorization.

123564161134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644234.

The product of its digits is 51840, while the sum is 37.

The spelling of 123564161134 in words is "one hundred twenty-three billion, five hundred sixty-four million, one hundred sixty-one thousand, one hundred thirty-four".