121601447 has 8 divisors (see below), whose sum is σ = 133831440. Its totient is φ = 109567360.

The previous prime is 121601407. The next prime is 121601479. The reversal of 121601447 is 744106121.

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 121601447 - 2⁶ = 121601383 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 (121601407) 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, 47672 + ... + 50157.

It is an arithmetic number, because the mean of its divisors is an integer number (16728930).

Almost surely, 2^121601447 is an apocalyptic number.

121601447 is a deficient number, since it is larger than the sum of its proper divisors (12229993).

121601447 is a wasteful number, since it uses less digits than its factorization.

121601447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97953.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 121601447 is about 11027.3046117354. The cubic root of 121601447 is about 495.4268969755.

Adding to 121601447 its reverse (744106121), we get a palindrome (865707568).

The spelling of 121601447 in words is "one hundred twenty-one million, six hundred one thousand, four hundred forty-seven".