122613625 has 8 divisors (see below), whose sum is σ = 153021960. Its totient is φ = 98090800.

The previous prime is 122613619. The next prime is 122613629. The reversal of 122613625 is 526316221.

It can be written as a sum of positive squares in 4 ways, for example, as 1679616 + 120934009 = 1296^2 + 10997^2 .

It is not a de Polignac number, because 122613625 - 2¹⁹ = 122089337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122613593 and 122613602.

It is not an unprimeable number, because it can be changed into a prime (122613629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490330 + ... + 490579.

It is an arithmetic number, because the mean of its divisors is an integer number (19127745).

Almost surely, 2^122613625 is an apocalyptic number.

It is an amenable number.

122613625 is a deficient number, since it is larger than the sum of its proper divisors (30408335).

122613625 is an frugal number, since it uses more digits than its factorization.

122613625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980924 (or 980914 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 122613625 is about 11073.1036751220. The cubic root of 122613625 is about 496.7977010140.

Adding to 122613625 its reverse (526316221), we get a palindrome (648929846).

The spelling of 122613625 in words is "one hundred twenty-two million, six hundred thirteen thousand, six hundred twenty-five".