121661054 has 8 divisors (see below), whose sum is σ = 182820888. Its totient is φ = 60720760.

The previous prime is 121661041. The next prime is 121661077. The reversal of 121661054 is 450166121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53492 + ... + 55719.

It is an arithmetic number, because the mean of its divisors is an integer number (22852611).

Almost surely, 2^121661054 is an apocalyptic number.

121661054 is a deficient number, since it is larger than the sum of its proper divisors (61159834).

121661054 is a wasteful number, since it uses less digits than its factorization.

121661054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109770.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 121661054 is about 11030.0069809588. The cubic root of 121661054 is about 495.5078337514.

The spelling of 121661054 in words is "one hundred twenty-one million, six hundred sixty-one thousand, fifty-four".