20153122 has 16 divisors (see below), whose sum is σ = 33242112. Its totient is φ = 9087120.

The previous prime is 20153117. The next prime is 20153141. The reversal of 20153122 is 22135102.

It is a super-2 number, since 2×20153122² = 812296652693768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20153096 and 20153105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813 + ... + 6400.

It is an arithmetic number, because the mean of its divisors is an integer number (2077632).

Almost surely, 2^20153122 is an apocalyptic number.

20153122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20153122 is a deficient number, since it is larger than the sum of its proper divisors (13088990).

20153122 is a wasteful number, since it uses less digits than its factorization.

20153122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7353.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20153122 is about 4489.2228726139. Note that the first 3 decimals coincide. The cubic root of 20153122 is about 272.1327296985.

Adding to 20153122 its reverse (22135102), we get a palindrome (42288224).

The spelling of 20153122 in words is "twenty million, one hundred fifty-three thousand, one hundred twenty-two".