124396164157 has 4 divisors (see below), whose sum is σ = 131713585596. Its totient is φ = 117078742720.

The previous prime is 124396164143. The next prime is 124396164199. The reversal of 124396164157 is 751461693421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751461693421 = 521 ⋅1442344901.

It can be written as a sum of positive squares in 2 ways, for example, as 92063089561 + 32333074596 = 303419^2 + 179814^2 .

It is a cyclic number.

It is not a de Polignac number, because 124396164157 - 2¹¹ = 124396162109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124396164157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124396164757) 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, 3658710694 + ... + 3658710727.

It is an arithmetic number, because the mean of its divisors is an integer number (32928396399).

Almost surely, 2^124396164157 is an apocalyptic number.

124396164157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

124396164157 is a deficient number, since it is larger than the sum of its proper divisors (7317421439).

124396164157 is an equidigital number, since it uses as much as digits as its factorization.

124396164157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317421438.

The product of its digits is 1088640, while the sum is 49.

The spelling of 124396164157 in words is "one hundred twenty-four billion, three hundred ninety-six million, one hundred sixty-four thousand, one hundred fifty-seven".