121630671 has 6 divisors (see below), whose sum is σ = 175688760. Its totient is φ = 81087108.

The previous prime is 121630643. The next prime is 121630673. The reversal of 121630671 is 176036121.

121630671 is a `hidden beast` number, since 1 + 21 + 630 + 6 + 7 + 1 = 666.

121630671 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 121630671 - 2⁷ = 121630543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121630673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6757251 + ... + 6757268.

It is an arithmetic number, because the mean of its divisors is an integer number (29281460).

Almost surely, 2^121630671 is an apocalyptic number.

121630671 is a deficient number, since it is larger than the sum of its proper divisors (54058089).

121630671 is a wasteful number, since it uses less digits than its factorization.

121630671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13514525 (or 13514522 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 121630671 is about 11028.6296066193. The cubic root of 121630671 is about 495.4665817992.

Adding to 121630671 its reverse (176036121), we get a palindrome (297666792).

The spelling of 121630671 in words is "one hundred twenty-one million, six hundred thirty thousand, six hundred seventy-one".