121156054 has 4 divisors (see below), whose sum is σ = 181734084. Its totient is φ = 60578026.

The previous prime is 121156037. The next prime is 121156073. The reversal of 121156054 is 450651121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30289012 + ... + 30289015.

It is an arithmetic number, because the mean of its divisors is an integer number (45433521).

Almost surely, 2^121156054 is an apocalyptic number.

121156054 is a deficient number, since it is larger than the sum of its proper divisors (60578030).

121156054 is an equidigital number, since it uses as much as digits as its factorization.

121156054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60578029.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 121156054 is about 11007.0910780278. The cubic root of 121156054 is about 494.8212856873.

The spelling of 121156054 in words is "one hundred twenty-one million, one hundred fifty-six thousand, fifty-four".