121741961 has 8 divisors (see below), whose sum is σ = 133058784. Its totient is φ = 110466720.

The previous prime is 121741897. The next prime is 121741973. The reversal of 121741961 is 169147121.

It is a happy number.

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 121741961 - 2⁶ = 121741897 is a prime.

It is a super-2 number, since 2×121741961² = 29642210136251042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121741861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4100 + ... + 16133.

It is an arithmetic number, because the mean of its divisors is an integer number (16632348).

Almost surely, 2^121741961 is an apocalyptic number.

121741961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121741961 is a deficient number, since it is larger than the sum of its proper divisors (11316823).

121741961 is a wasteful number, since it uses less digits than its factorization.

121741961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20791.

The product of its digits is 3024, while the sum is 32.

The square root of 121741961 is about 11033.6739574813. The cubic root of 121741961 is about 495.6176502384.

The spelling of 121741961 in words is "one hundred twenty-one million, seven hundred forty-one thousand, nine hundred sixty-one".