13122555 has 16 divisors (see below), whose sum is σ = 22231584. Its totient is φ = 6586880.

The previous prime is 13122547. The next prime is 13122601. The reversal of 13122555 is 55522131.

13122555 = T₁₂₃₄ + T₁₂₃₅ + ... + T₁₂₅₀.

It is a happy number.

It is not a de Polignac number, because 13122555 - 2³ = 13122547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25476 + ... + 25985.

It is an arithmetic number, because the mean of its divisors is an integer number (1389474).

Almost surely, 2^13122555 is an apocalyptic number.

13122555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13122555 is a deficient number, since it is larger than the sum of its proper divisors (9109029).

13122555 is a wasteful number, since it uses less digits than its factorization.

13122555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51486.

The product of its digits is 1500, while the sum is 24.

The square root of 13122555 is about 3622.5067287722. The cubic root of 13122555 is about 235.8700507897.

Adding to 13122555 its reverse (55522131), we get a palindrome (68644686).

The spelling of 13122555 in words is "thirteen million, one hundred twenty-two thousand, five hundred fifty-five".