121322545 has 8 divisors (see below), whose sum is σ = 145768896. Its totient is φ = 96936816.

The previous prime is 121322503. The next prime is 121322549. The reversal of 121322545 is 545223121.

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 121322545 - 2⁷ = 121322417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121322549) 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, 10627 + ... + 18856.

It is an arithmetic number, because the mean of its divisors is an integer number (18221112).

Almost surely, 2^121322545 is an apocalyptic number.

It is an amenable number.

121322545 is a deficient number, since it is larger than the sum of its proper divisors (24446351).

121322545 is an equidigital number, since it uses as much as digits as its factorization.

121322545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30311.

The product of its digits is 2400, while the sum is 25.

The square root of 121322545 is about 11014.6513789588. The cubic root of 121322545 is about 495.0478408341.

Adding to 121322545 its reverse (545223121), we get a palindrome (666545666).

The spelling of 121322545 in words is "one hundred twenty-one million, three hundred twenty-two thousand, five hundred forty-five".