121425300 has 54 divisors (see below), whose sum is σ = 380603678. Its totient is φ = 32379840.

The previous prime is 121425289. The next prime is 121425307. The reversal of 121425300 is 3524121.

It can be written as a sum of positive squares in 3 ways, for example, as 34152336 + 87272964 = 5844^2 + 9342^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121425307) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 66559 + ... + 68358.

Almost surely, 2^121425300 is an apocalyptic number.

121425300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121425300 is an abundant number, since it is smaller than the sum of its proper divisors (259178378).

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

121425300 is a wasteful number, since it uses less digits than its factorization.

121425300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134937 (or 134927 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 121425300 is about 11019.3148607343. The cubic root of 121425300 is about 495.1875628356.

Adding to 121425300 its reverse (3524121), we get a palindrome (124949421).

The spelling of 121425300 in words is "one hundred twenty-one million, four hundred twenty-five thousand, three hundred".