121089495 has 8 divisors (see below), whose sum is σ = 193743216. Its totient is φ = 64581056.

The previous prime is 121089491. The next prime is 121089497. The reversal of 121089495 is 594980121.

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 121089495 - 2² = 121089491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121089491) 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 7 ways as a sum of consecutive naturals, for example, 4036302 + ... + 4036331.

It is an arithmetic number, because the mean of its divisors is an integer number (24217902).

Almost surely, 2^121089495 is an apocalyptic number.

121089495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121089495 is a deficient number, since it is larger than the sum of its proper divisors (72653721).

121089495 is an equidigital number, since it uses as much as digits as its factorization.

121089495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8072641.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 121089495 is about 11004.0672026301. The cubic root of 121089495 is about 494.7306564484.

The spelling of 121089495 in words is "one hundred twenty-one million, eighty-nine thousand, four hundred ninety-five".