121604135 has 8 divisors (see below), whose sum is σ = 146135040. Its totient is φ = 97143264.

The previous prime is 121604107. The next prime is 121604137. The reversal of 121604135 is 531406121.

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 121604135 - 2¹⁴ = 121587751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121604135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121604137) 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, 13607 + ... + 20696.

It is an arithmetic number, because the mean of its divisors is an integer number (18266880).

Almost surely, 2^121604135 is an apocalyptic number.

121604135 is a deficient number, since it is larger than the sum of its proper divisors (24530905).

121604135 is an equidigital number, since it uses as much as digits as its factorization.

121604135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35017.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 121604135 is about 11027.4264903467. The cubic root of 121604135 is about 495.4305474192.

The spelling of 121604135 in words is "one hundred twenty-one million, six hundred four thousand, one hundred thirty-five".