121452105 has 8 divisors (see below), whose sum is σ = 194323392. Its totient is φ = 64774448.

The previous prime is 121452101. The next prime is 121452113. The reversal of 121452105 is 501254121.

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 121452105 - 2² = 121452101 is a prime.

It is a super-2 number, since 2×121452105² = 29501227617862050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (121452101) 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, 4048389 + ... + 4048418.

It is an arithmetic number, because the mean of its divisors is an integer number (24290424).

Almost surely, 2^121452105 is an apocalyptic number.

121452105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121452105 is a deficient number, since it is larger than the sum of its proper divisors (72871287).

121452105 is an equidigital number, since it uses as much as digits as its factorization.

121452105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8096815.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 121452105 is about 11020.5310670584. The cubic root of 121452105 is about 495.2239982024.

The spelling of 121452105 in words is "one hundred twenty-one million, four hundred fifty-two thousand, one hundred five".