121624131 has 8 divisors (see below), whose sum is σ = 162238464. Its totient is φ = 81046280.

The previous prime is 121624127. The next prime is 121624147. The reversal of 121624131 is 131426121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121624131 - 2² = 121624127 is a prime.

It is a super-2 number, since 2×121624131² = 29584858483010322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121624098 and 121624107.

It is not an unprimeable number, because it can be changed into a prime (121624121) 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, 51 + ... + 15596.

It is an arithmetic number, because the mean of its divisors is an integer number (20279808).

Almost surely, 2^121624131 is an apocalyptic number.

121624131 is a deficient number, since it is larger than the sum of its proper divisors (40614333).

121624131 is a wasteful number, since it uses less digits than its factorization.

121624131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18241.

The product of its digits is 288, while the sum is 21.

The square root of 121624131 is about 11028.3331016070. Note that the first 3 decimals coincide. The cubic root of 121624131 is about 495.4577013376.

The spelling of 121624131 in words is "one hundred twenty-one million, six hundred twenty-four thousand, one hundred thirty-one".