123354525145 has 16 divisors (see below), whose sum is σ = 152057016720. Its totient is φ = 95996980224.

The previous prime is 123354525143. The next prime is 123354525181. The reversal of 123354525145 is 541525453321.

It can be written as a sum of positive squares in 8 ways, for example, as 683665609 + 122670859536 = 26147^2 + 350244^2 .

It is a cyclic number.

It is not a de Polignac number, because 123354525145 - 2¹ = 123354525143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123354525098 and 123354525107.

It is not an unprimeable number, because it can be changed into a prime (123354525143) 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, 880701 + ... + 1011109.

It is an arithmetic number, because the mean of its divisors is an integer number (9503563545).

Almost surely, 2^123354525145 is an apocalyptic number.

It is an amenable number.

123354525145 is a deficient number, since it is larger than the sum of its proper divisors (28702491575).

123354525145 is a wasteful number, since it uses less digits than its factorization.

123354525145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135564.

The product of its digits is 360000, while the sum is 40.

Adding to 123354525145 its reverse (541525453321), we get a palindrome (664879978466).

The spelling of 123354525145 in words is "one hundred twenty-three billion, three hundred fifty-four million, five hundred twenty-five thousand, one hundred forty-five".