121434500 has 48 divisors (see below), whose sum is σ = 289336320. Its totient is φ = 44156000.

The previous prime is 121434499. The next prime is 121434517. The reversal of 121434500 is 5434121.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 5540 + ... + 16539.

It is an arithmetic number, because the mean of its divisors is an integer number (6027840).

Almost surely, 2^121434500 is an apocalyptic number.

121434500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121434500 is an abundant number, since it is smaller than the sum of its proper divisors (167901820).

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

121434500 is a wasteful number, since it uses less digits than its factorization.

121434500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22109 (or 22097 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 121434500 is about 11019.7323016487. The cubic root of 121434500 is about 495.2000687700.

Adding to 121434500 its reverse (5434121), we get a palindrome (126868621).

The spelling of 121434500 in words is "one hundred twenty-one million, four hundred thirty-four thousand, five hundred".