121528814 has 16 divisors (see below), whose sum is σ = 199082880. Its totient is φ = 55179960.

The previous prime is 121528753. The next prime is 121528843. The reversal of 121528814 is 418825121.

It is a congruent number.

It is an unprimeable number.

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, 22247 + ... + 27165.

It is an arithmetic number, because the mean of its divisors is an integer number (12442680).

Almost surely, 2^121528814 is an apocalyptic number.

121528814 is a deficient number, since it is larger than the sum of its proper divisors (77554066).

121528814 is a wasteful number, since it uses less digits than its factorization.

121528814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055.

The product of its digits is 5120, while the sum is 32.

The square root of 121528814 is about 11024.0107946246. The cubic root of 121528814 is about 495.3282372156.

The spelling of 121528814 in words is "one hundred twenty-one million, five hundred twenty-eight thousand, eight hundred fourteen".