121532010 has 16 divisors (see below), whose sum is σ = 291676896. Its totient is φ = 32408528.

The previous prime is 121531957. The next prime is 121532017. The reversal of 121532010 is 10235121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121532017) by changing a digit.

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, 2025504 + ... + 2025563.

It is an arithmetic number, because the mean of its divisors is an integer number (18229806).

Almost surely, 2^121532010 is an apocalyptic number.

121532010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121532010 is an abundant number, since it is smaller than the sum of its proper divisors (170144886).

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

121532010 is a wasteful number, since it uses less digits than its factorization.

121532010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051077.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 121532010 is about 11024.1557499883. The cubic root of 121532010 is about 495.3325792727.

Adding to 121532010 its reverse (10235121), we get a palindrome (131767131).

The spelling of 121532010 in words is "one hundred twenty-one million, five hundred thirty-two thousand, ten".