121528534 has 8 divisors (see below), whose sum is σ = 183604680. Its totient is φ = 60326976.

The previous prime is 121528507. The next prime is 121528543. The reversal of 121528534 is 435825121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121528496 and 121528505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218299 + ... + 218854.

It is an arithmetic number, because the mean of its divisors is an integer number (22950585).

Almost surely, 2^121528534 is an apocalyptic number.

121528534 is a deficient number, since it is larger than the sum of its proper divisors (62076146).

121528534 is a wasteful number, since it uses less digits than its factorization.

121528534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437294.

The product of its digits is 9600, while the sum is 31.

The square root of 121528534 is about 11023.9980950651. The cubic root of 121528534 is about 495.3278568064.

The spelling of 121528534 in words is "one hundred twenty-one million, five hundred twenty-eight thousand, five hundred thirty-four".