123953655 has 64 divisors (see below), whose sum is σ = 236740608. Its totient is φ = 54190080.

The previous prime is 123953633. The next prime is 123953659. The reversal of 123953655 is 556359321.

It is not a de Polignac number, because 123953655 - 2⁵ = 123953623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123953659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 367647 + ... + 367983.

It is an arithmetic number, because the mean of its divisors is an integer number (3699072).

Almost surely, 2^123953655 is an apocalyptic number.

123953655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123953655 is a deficient number, since it is larger than the sum of its proper divisors (112786953).

123953655 is a wasteful number, since it uses less digits than its factorization.

123953655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its digits is 121500, while the sum is 39.

The square root of 123953655 is about 11133.4475792541. The cubic root of 123953655 is about 498.6009623719.

The spelling of 123953655 in words is "one hundred twenty-three million, nine hundred fifty-three thousand, six hundred fifty-five".