122941287 has 16 divisors (see below), whose sum is σ = 208154880. Its totient is φ = 70252056.

The previous prime is 122941277. The next prime is 122941289. The reversal of 122941287 is 782149221.

It is not a de Polignac number, because 122941287 - 2¹¹ = 122939239 is a prime.

It is a super-2 number, since 2×122941287² = 30229120098432738, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122941289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325053 + ... + 325430.

It is an arithmetic number, because the mean of its divisors is an integer number (13009680).

Almost surely, 2^122941287 is an apocalyptic number.

122941287 is a deficient number, since it is larger than the sum of its proper divisors (85213593).

122941287 is an equidigital number, since it uses as much as digits as its factorization.

122941287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650499 (or 650493 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 122941287 is about 11087.8892039919. The cubic root of 122941287 is about 497.2398404090.

The spelling of 122941287 in words is "one hundred twenty-two million, nine hundred forty-one thousand, two hundred eighty-seven".