122345551 has 8 divisors (see below), whose sum is σ = 124369280. Its totient is φ = 120327768.

The previous prime is 122345537. The next prime is 122345581. The reversal of 122345551 is 155543221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122345551 - 2⁷ = 122345423 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 (122345581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60580 + ... + 62566.

It is an arithmetic number, because the mean of its divisors is an integer number (15546160).

Almost surely, 2^122345551 is an apocalyptic number.

122345551 is a deficient number, since it is larger than the sum of its proper divisors (2023729).

122345551 is an equidigital number, since it uses as much as digits as its factorization.

122345551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973.

The product of its digits is 6000, while the sum is 28.

The square root of 122345551 is about 11060.9923153395. The cubic root of 122345551 is about 496.4353820563.

Adding to 122345551 its reverse (155543221), we get a palindrome (277888772).

The spelling of 122345551 in words is "one hundred twenty-two million, three hundred forty-five thousand, five hundred fifty-one".