121451530 has 8 divisors (see below), whose sum is σ = 218612772. Its totient is φ = 48580608.

The previous prime is 121451489. The next prime is 121451531. The reversal of 121451530 is 35154121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 116402521 + 5049009 = 10789^2 + 2247^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121451531) 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 3 ways as a sum of consecutive naturals, for example, 6072567 + ... + 6072586.

Almost surely, 2^121451530 is an apocalyptic number.

121451530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121451530 is a deficient number, since it is larger than the sum of its proper divisors (97161242).

121451530 is a wasteful number, since it uses less digits than its factorization.

121451530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12145160.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 121451530 is about 11020.5049793555. The cubic root of 121451530 is about 495.2232166755.

The spelling of 121451530 in words is "one hundred twenty-one million, four hundred fifty-one thousand, five hundred thirty".