121749627 has 16 divisors (see below), whose sum is σ = 170784000. Its totient is φ = 77036064.

The previous prime is 121749613. The next prime is 121749637. The reversal of 121749627 is 726947121.

It is not a de Polignac number, because 121749627 - 2¹⁰ = 121748603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121749637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6727 + ... + 16992.

It is an arithmetic number, because the mean of its divisors is an integer number (10674000).

Almost surely, 2^121749627 is an apocalyptic number.

121749627 is a deficient number, since it is larger than the sum of its proper divisors (49034373).

121749627 is a wasteful number, since it uses less digits than its factorization.

121749627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23810.

The product of its digits is 42336, while the sum is 39.

The square root of 121749627 is about 11034.0213431006. The cubic root of 121749627 is about 495.6280529107.

The spelling of 121749627 in words is "one hundred twenty-one million, seven hundred forty-nine thousand, six hundred twenty-seven".