121152455 has 16 divisors (see below), whose sum is σ = 162038880. Its totient is φ = 86418432.

The previous prime is 121152403. The next prime is 121152461. The reversal of 121152455 is 554251121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121152455 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35894 + ... + 39123.

It is an arithmetic number, because the mean of its divisors is an integer number (10127430).

Almost surely, 2^121152455 is an apocalyptic number.

121152455 is a deficient number, since it is larger than the sum of its proper divisors (40886425).

121152455 is a wasteful number, since it uses less digits than its factorization.

121152455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75058.

The product of its digits is 2000, while the sum is 26.

The square root of 121152455 is about 11006.9275912945. The cubic root of 121152455 is about 494.8163860025.

The spelling of 121152455 in words is "one hundred twenty-one million, one hundred fifty-two thousand, four hundred fifty-five".