121671463 has 4 divisors (see below), whose sum is σ = 122488200. Its totient is φ = 120854728.

The previous prime is 121671409. The next prime is 121671479. The reversal of 121671463 is 364176121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364176121 = 97 ⋅3754393.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121671463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121671163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408145 + ... + 408442.

It is an arithmetic number, because the mean of its divisors is an integer number (30622050).

Almost surely, 2^121671463 is an apocalyptic number.

121671463 is a deficient number, since it is larger than the sum of its proper divisors (816737).

121671463 is an equidigital number, since it uses as much as digits as its factorization.

121671463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816736.

The product of its digits is 6048, while the sum is 31.

The square root of 121671463 is about 11030.4788200694. The cubic root of 121671463 is about 495.5219647976.

The spelling of 121671463 in words is "one hundred twenty-one million, six hundred seventy-one thousand, four hundred sixty-three".