121632655 has 8 divisors (see below), whose sum is σ = 146056752. Its totient is φ = 97241088.

The previous prime is 121632649. The next prime is 121632677. The reversal of 121632655 is 556236121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121632655 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 15631.

It is an arithmetic number, because the mean of its divisors is an integer number (18257094).

Almost surely, 2^121632655 is an apocalyptic number.

121632655 is a deficient number, since it is larger than the sum of its proper divisors (24424097).

121632655 is a wasteful number, since it uses less digits than its factorization.

121632655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16265.

The product of its digits is 10800, while the sum is 31.

The square root of 121632655 is about 11028.7195539645. The cubic root of 121632655 is about 495.4692757479.

Adding to 121632655 its reverse (556236121), we get a palindrome (677868776).

The spelling of 121632655 in words is "one hundred twenty-one million, six hundred thirty-two thousand, six hundred fifty-five".