123501613 has 8 divisors (see below), whose sum is σ = 127801856. Its totient is φ = 119221200.

The previous prime is 123501533. The next prime is 123501629. The reversal of 123501613 is 316105321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123501613 - 2²¹ = 121404461 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 (123501643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8320 + ... + 17782.

It is an arithmetic number, because the mean of its divisors is an integer number (15975232).

Almost surely, 2^123501613 is an apocalyptic number.

It is an amenable number.

123501613 is a deficient number, since it is larger than the sum of its proper divisors (4300243).

123501613 is an equidigital number, since it uses as much as digits as its factorization.

123501613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9915.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 123501613 is about 11113.1279575104. The cubic root of 123501613 is about 497.9941142727.

Adding to 123501613 its reverse (316105321), we get a palindrome (439606934).

The spelling of 123501613 in words is "one hundred twenty-three million, five hundred one thousand, six hundred thirteen".