122621533 has 4 divisors (see below), whose sum is σ = 127952928. Its totient is φ = 117290140.

The previous prime is 122621519. The next prime is 122621539. The reversal of 122621533 is 335126221.

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 122621533 - 2⁵ = 122621501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122621498 and 122621507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122621539) 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, 2665663 + ... + 2665708.

It is an arithmetic number, because the mean of its divisors is an integer number (31988232).

Almost surely, 2^122621533 is an apocalyptic number.

It is an amenable number.

122621533 is a deficient number, since it is larger than the sum of its proper divisors (5331395).

122621533 is an equidigital number, since it uses as much as digits as its factorization.

122621533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331394.

The product of its digits is 2160, while the sum is 25.

The square root of 122621533 is about 11073.4607508222. The cubic root of 122621533 is about 496.8083811532.

Adding to 122621533 its reverse (335126221), we get a palindrome (457747754).

It can be divided in two parts, 12262 and 1533, that multiplied together give a triangular number (18797646 = T₆₁₃₁).

The spelling of 122621533 in words is "one hundred twenty-two million, six hundred twenty-one thousand, five hundred thirty-three".