122727813 has 8 divisors (see below), whose sum is σ = 176224608. Its totient is φ = 75524784.

The previous prime is 122727769. The next prime is 122727841. The reversal of 122727813 is 318727221.

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

It is not a de Polignac number, because 122727813 - 2⁶ = 122727749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122727013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573395 + ... + 1573472.

It is an arithmetic number, because the mean of its divisors is an integer number (22028076).

Almost surely, 2^122727813 is an apocalyptic number.

122727813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

122727813 is a deficient number, since it is larger than the sum of its proper divisors (53496795).

122727813 is a wasteful number, since it uses less digits than its factorization.

122727813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146883.

The product of its digits is 9408, while the sum is 33.

The square root of 122727813 is about 11078.2585725375. The cubic root of 122727813 is about 496.9518729367.

Adding to 122727813 its product of digits (9408), we get a palindrome (122737221).

The spelling of 122727813 in words is "one hundred twenty-two million, seven hundred twenty-seven thousand, eight hundred thirteen".