121784030 has 16 divisors (see below), whose sum is σ = 221987520. Its totient is φ = 48096672.

The previous prime is 121783997. The next prime is 121784051. The reversal of 121784030 is 30487121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76289 + ... + 77868.

It is an arithmetic number, because the mean of its divisors is an integer number (13874220).

Almost surely, 2^121784030 is an apocalyptic number.

121784030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121784030 is a deficient number, since it is larger than the sum of its proper divisors (100203490).

121784030 is a wasteful number, since it uses less digits than its factorization.

121784030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154243.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 121784030 is about 11035.5801841136. The cubic root of 121784030 is about 495.6747320027.

The spelling of 121784030 in words is "one hundred twenty-one million, seven hundred eighty-four thousand, thirty".