121732530 has 32 divisors (see below), whose sum is σ = 293803200. Its totient is φ = 32279232.

The previous prime is 121732519. The next prime is 121732543. The reversal of 121732530 is 35237121.

It is a self number, because there is not a number n which added to its sum of digits gives 121732530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5965 + ... + 16704.

It is an arithmetic number, because the mean of its divisors is an integer number (9181350).

Almost surely, 2^121732530 is an apocalyptic number.

121732530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121732530 is an abundant number, since it is smaller than the sum of its proper divisors (172070670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121732530 is a wasteful number, since it uses less digits than its factorization.

121732530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22858.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 121732530 is about 11033.2465756911. The cubic root of 121732530 is about 495.6048518827.

Adding to 121732530 its reverse (35237121), we get a palindrome (156969651).

The spelling of 121732530 in words is "one hundred twenty-one million, seven hundred thirty-two thousand, five hundred thirty".