122087087 has 4 divisors (see below), whose sum is σ = 125386776. Its totient is φ = 118787400.

The previous prime is 122087057. The next prime is 122087099. The reversal of 122087087 is 780780221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122087087 - 2⁶ = 122087023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122087057) 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 3 ways as a sum of consecutive naturals, for example, 1649789 + ... + 1649862.

It is an arithmetic number, because the mean of its divisors is an integer number (31346694).

Almost surely, 2^122087087 is an apocalyptic number.

122087087 is a deficient number, since it is larger than the sum of its proper divisors (3299689).

122087087 is an equidigital number, since it uses as much as digits as its factorization.

122087087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299688.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 122087087 is about 11049.3025571753. The cubic root of 122087087 is about 496.0855501390.

The spelling of 122087087 in words is "one hundred twenty-two million, eighty-seven thousand, eighty-seven".