122438648447533 has 4 divisors (see below), whose sum is σ = 133569434670048. Its totient is φ = 111307862225020.

The previous prime is 122438648447459. The next prime is 122438648447617. The reversal of 122438648447533 is 335744846834221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122438648447533 - 2⁴⁵ = 87254276358701 is a prime.

It is a super-2 number, since 2×122438648447533² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122438648447933) 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, 5565393111241 + ... + 5565393111262.

It is an arithmetic number, because the mean of its divisors is an integer number (33392358667512).

Almost surely, 2^{122438648447533} is an apocalyptic number.

It is an amenable number.

122438648447533 is a deficient number, since it is larger than the sum of its proper divisors (11130786222515).

122438648447533 is a wasteful number, since it uses less digits than its factorization.

122438648447533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130786222514.

The product of its digits is 371589120, while the sum is 64.

The spelling of 122438648447533 in words is "one hundred twenty-two trillion, four hundred thirty-eight billion, six hundred forty-eight million, four hundred forty-seven thousand, five hundred thirty-three".