123153621461425 has 6 divisors (see below), whose sum is σ = 152710490612198. Its totient is φ = 98522897169120.

The previous prime is 123153621461363. The next prime is 123153621461441. The reversal of 123153621461425 is 524164126351321.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 73945381041 + 123079676080384 = 271929^2 + 11094128^2 .

It is not a de Polignac number, because 123153621461425 - 2⁴¹ = 120954598205873 is a prime.

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 2463072429204 + ... + 2463072429253.

Almost surely, 2^{123153621461425} is an apocalyptic number.

It is an amenable number.

123153621461425 is a deficient number, since it is larger than the sum of its proper divisors (29556869150773).

123153621461425 is an equidigital number, since it uses as much as digits as its factorization.

123153621461425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926144858467 (or 4926144858462 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The spelling of 123153621461425 in words is "one hundred twenty-three trillion, one hundred fifty-three billion, six hundred twenty-one million, four hundred sixty-one thousand, four hundred twenty-five".