121624130 has 16 divisors (see below), whose sum is σ = 230446080. Its totient is φ = 46089072.

The previous prime is 121624127. The next prime is 121624147. The reversal of 121624130 is 31426121.

It is a Curzon 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, 319874 + ... + 320253.

It is an arithmetic number, because the mean of its divisors is an integer number (14402880).

Almost surely, 2^121624130 is an apocalyptic number.

121624130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121624130 is a deficient number, since it is larger than the sum of its proper divisors (108821950).

121624130 is a wasteful number, since it uses less digits than its factorization.

121624130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640153.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 121624130 is about 11028.3330562692. Note that the first 3 decimals coincide. The cubic root of 121624130 is about 495.4576999797.

The spelling of 121624130 in words is "one hundred twenty-one million, six hundred twenty-four thousand, one hundred thirty".