121345154 has 8 divisors (see below), whose sum is σ = 208020288. Its totient is φ = 52005060.

The previous prime is 121345151. The next prime is 121345207. The reversal of 121345154 is 451543121.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121345151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4333742 + ... + 4333769.

It is an arithmetic number, because the mean of its divisors is an integer number (26002536).

Almost surely, 2^121345154 is an apocalyptic number.

121345154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121345154 is a deficient number, since it is larger than the sum of its proper divisors (86675134).

121345154 is an equidigital number, since it uses as much as digits as its factorization.

121345154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8667520.

The product of its digits is 2400, while the sum is 26.

The square root of 121345154 is about 11015.6776459735. The cubic root of 121345154 is about 495.0785903853.

Adding to 121345154 its reverse (451543121), we get a palindrome (572888275).

The spelling of 121345154 in words is "one hundred twenty-one million, three hundred forty-five thousand, one hundred fifty-four".