121351255 has 8 divisors (see below), whose sum is σ = 146141424. Its totient is φ = 96734400.

The previous prime is 121351247. The next prime is 121351261. The reversal of 121351255 is 552153121.

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

It is not a de Polignac number, because 121351255 - 2³ = 121351247 is a prime.

It is a super-2 number, since 2×121351255² = 29452254180150050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 41781 + ... + 44590.

It is an arithmetic number, because the mean of its divisors is an integer number (18267678).

Almost surely, 2^121351255 is an apocalyptic number.

121351255 is a deficient number, since it is larger than the sum of its proper divisors (24790169).

121351255 is an equidigital number, since it uses as much as digits as its factorization.

121351255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86657.

The product of its digits is 1500, while the sum is 25.

The square root of 121351255 is about 11015.9545659920. The cubic root of 121351255 is about 495.0868874447.

The spelling of 121351255 in words is "one hundred twenty-one million, three hundred fifty-one thousand, two hundred fifty-five".