121090546 has 8 divisors (see below), whose sum is σ = 182068524. Its totient is φ = 60401040.

The previous prime is 121090511. The next prime is 121090547. The reversal of 121090546 is 645090121.

It can be written as a sum of positive squares in 2 ways, for example, as 112593321 + 8497225 = 10611^2 + 2915^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121090547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71065 + ... + 72748.

Almost surely, 2^121090546 is an apocalyptic number.

121090546 is a deficient number, since it is larger than the sum of its proper divisors (60977978).

121090546 is a wasteful number, since it uses less digits than its factorization.

121090546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144236.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 121090546 is about 11004.1149575965. The cubic root of 121090546 is about 494.7320877876.

The spelling of 121090546 in words is "one hundred twenty-one million, ninety thousand, five hundred forty-six".