121534149 has 8 divisors (see below), whose sum is σ = 176776992. Its totient is φ = 73657040.

The previous prime is 121534121. The next prime is 121534169. The reversal of 121534149 is 941435121.

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 121534149 - 2⁵ = 121534117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121534169) 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 7 ways as a sum of consecutive naturals, for example, 1841394 + ... + 1841459.

It is an arithmetic number, because the mean of its divisors is an integer number (22097124).

Almost surely, 2^121534149 is an apocalyptic number.

It is an amenable number.

121534149 is a deficient number, since it is larger than the sum of its proper divisors (55242843).

121534149 is a wasteful number, since it uses less digits than its factorization.

121534149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682867.

The product of its digits is 4320, while the sum is 30.

The square root of 121534149 is about 11024.2527637931. The cubic root of 121534149 is about 495.3354852566.

The spelling of 121534149 in words is "one hundred twenty-one million, five hundred thirty-four thousand, one hundred forty-nine".