121604414 has 4 divisors (see below), whose sum is σ = 182406624. Its totient is φ = 60802206.

The previous prime is 121604411. The next prime is 121604423. The reversal of 121604414 is 414406121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 414406121 = 139 ⋅2981339.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121604414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121604411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30401102 + ... + 30401105.

It is an arithmetic number, because the mean of its divisors is an integer number (45601656).

Almost surely, 2^121604414 is an apocalyptic number.

121604414 is a deficient number, since it is larger than the sum of its proper divisors (60802210).

121604414 is an equidigital number, since it uses as much as digits as its factorization.

121604414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60802209.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 121604414 is about 11027.4391406165. The cubic root of 121604414 is about 495.4309263126.

The spelling of 121604414 in words is "one hundred twenty-one million, six hundred four thousand, four hundred fourteen".