13154623145 has 4 divisors (see below), whose sum is σ = 15785547780. Its totient is φ = 10523698512.

The previous prime is 13154623133. The next prime is 13154623169. The reversal of 13154623145 is 54132645131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9955250176 + 3199372969 = 99776^2 + 56563^2 .

It is a cyclic number.

It is not a de Polignac number, because 13154623145 - 2⁴ = 13154623129 is a prime.

It is a super-2 number, since 2×13154623145² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315462310 + ... + 1315462319.

It is an arithmetic number, because the mean of its divisors is an integer number (3946386945).

Almost surely, 2^13154623145 is an apocalyptic number.

It is an amenable number.

13154623145 is a deficient number, since it is larger than the sum of its proper divisors (2630924635).

13154623145 is an equidigital number, since it uses as much as digits as its factorization.

13154623145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630924634.

The product of its digits is 43200, while the sum is 35.

The spelling of 13154623145 in words is "thirteen billion, one hundred fifty-four million, six hundred twenty-three thousand, one hundred forty-five".