122605513 has 16 divisors (see below), whose sum is σ = 133721280. Its totient is φ = 111960576.

The previous prime is 122605493. The next prime is 122605523. The reversal of 122605513 is 315506221.

It is a cyclic number.

It is not a de Polignac number, because 122605513 - 2¹⁷ = 122474441 is a prime.

It is a super-2 number, since 2×122605513² = 30064223635986338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122605523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130381 + ... + 131317.

It is an arithmetic number, because the mean of its divisors is an integer number (8357580).

Almost surely, 2^122605513 is an apocalyptic number.

It is an amenable number.

122605513 is a deficient number, since it is larger than the sum of its proper divisors (11115767).

122605513 is a wasteful number, since it uses less digits than its factorization.

122605513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 122605513 is about 11072.7373760963. The cubic root of 122605513 is about 496.7867448857.

The spelling of 122605513 in words is "one hundred twenty-two million, six hundred five thousand, five hundred thirteen".