121213465 has 8 divisors (see below), whose sum is σ = 145675080. Its totient is φ = 96824832.

The previous prime is 121213453. The next prime is 121213471. The reversal of 121213465 is 564312121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47734281 + 73479184 = 6909^2 + 8572^2 .

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 121213465 - 2¹⁷ = 121082393 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14520 + ... + 21289.

It is an arithmetic number, because the mean of its divisors is an integer number (18209385).

Almost surely, 2^121213465 is an apocalyptic number.

It is an amenable number.

121213465 is a deficient number, since it is larger than the sum of its proper divisors (24461615).

121213465 is an equidigital number, since it uses as much as digits as its factorization.

121213465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36491.

The product of its digits is 1440, while the sum is 25.

The square root of 121213465 is about 11009.6986788922. The cubic root of 121213465 is about 494.8994320060.

Adding to 121213465 its reverse (564312121), we get a palindrome (685525586).

The spelling of 121213465 in words is "one hundred twenty-one million, two hundred thirteen thousand, four hundred sixty-five".