121504045 has 8 divisors (see below), whose sum is σ = 157020696. Its totient is φ = 89726016.

The previous prime is 121504039. The next prime is 121504051. The reversal of 121504045 is 540405121.

It is an interprime number because it is at equal distance from previous prime (121504039) and next prime (121504051).

It can be written as a sum of positive squares in 4 ways, for example, as 1075369 + 120428676 = 1037^2 + 10974^2 .

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 121504045 - 2⁵ = 121504013 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 934582 + ... + 934711.

It is an arithmetic number, because the mean of its divisors is an integer number (19627587).

Almost surely, 2^121504045 is an apocalyptic number.

It is an amenable number.

121504045 is a deficient number, since it is larger than the sum of its proper divisors (35516651).

121504045 is a wasteful number, since it uses less digits than its factorization.

121504045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869311.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 121504045 is about 11022.8873259233. The cubic root of 121504045 is about 495.2945836912.

Adding to 121504045 its reverse (540405121), we get a palindrome (661909166).

The spelling of 121504045 in words is "one hundred twenty-one million, five hundred four thousand, forty-five".