124398655 has 4 divisors (see below), whose sum is σ = 149278392. Its totient is φ = 99518920.

The previous prime is 124398653. The next prime is 124398667. The reversal of 124398655 is 556893421.

124398655 is nontrivially palindromic in base 15.

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

It is not a de Polignac number, because 124398655 - 2¹ = 124398653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124398653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12439861 + ... + 12439870.

It is an arithmetic number, because the mean of its divisors is an integer number (37319598).

Almost surely, 2^124398655 is an apocalyptic number.

124398655 is a deficient number, since it is larger than the sum of its proper divisors (24879737).

124398655 is an equidigital number, since it uses as much as digits as its factorization.

124398655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24879736.

The product of its digits is 259200, while the sum is 43.

The square root of 124398655 is about 11153.4144996050. The cubic root of 124398655 is about 499.1969174742.

The spelling of 124398655 in words is "one hundred twenty-four million, three hundred ninety-eight thousand, six hundred fifty-five".