122567287 has 4 divisors (see below), whose sum is σ = 122882760. Its totient is φ = 122251816.

The previous prime is 122567257. The next prime is 122567303. The reversal of 122567287 is 782765221.

It is a happy number.

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 122567287 - 2¹¹ = 122565239 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122567257) 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, 157153 + ... + 157930.

It is an arithmetic number, because the mean of its divisors is an integer number (30720690).

Almost surely, 2^122567287 is an apocalyptic number.

122567287 is a deficient number, since it is larger than the sum of its proper divisors (315473).

122567287 is an equidigital number, since it uses as much as digits as its factorization.

122567287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315472.

The product of its digits is 94080, while the sum is 40.

The square root of 122567287 is about 11071.0111101019. The cubic root of 122567287 is about 496.7351100568.

The spelling of 122567287 in words is "one hundred twenty-two million, five hundred sixty-seven thousand, two hundred eighty-seven".