121089401 has 8 divisors (see below), whose sum is σ = 121946760. Its totient is φ = 120235392.

The previous prime is 121089377. The next prime is 121089403. The reversal of 121089401 is 104980121.

It can be written as a sum of positive squares in 4 ways, for example, as 13987600 + 107101801 = 3740^2 + 10349^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121089401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121089403) 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, 164831 + ... + 165563.

It is an arithmetic number, because the mean of its divisors is an integer number (15243345).

Almost surely, 2^121089401 is an apocalyptic number.

It is an amenable number.

121089401 is a deficient number, since it is larger than the sum of its proper divisors (857359).

121089401 is an equidigital number, since it uses as much as digits as its factorization.

121089401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 121089401 is about 11004.0629314813. The cubic root of 121089401 is about 494.7305284310.

The spelling of 121089401 in words is "one hundred twenty-one million, eighty-nine thousand, four hundred one".