121656350 has 12 divisors (see below), whose sum is σ = 226280904. Its totient is φ = 48662520.

The previous prime is 121656343. The next prime is 121656371. The reversal of 121656350 is 53656121.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1216514 + ... + 1216613.

It is an arithmetic number, because the mean of its divisors is an integer number (18856742).

Almost surely, 2^121656350 is an apocalyptic number.

121656350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121656350 is a deficient number, since it is larger than the sum of its proper divisors (104624554).

121656350 is a wasteful number, since it uses less digits than its factorization.

121656350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433139 (or 2433134 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 121656350 is about 11029.7937424052. The cubic root of 121656350 is about 495.5014474324.

The spelling of 121656350 in words is "one hundred twenty-one million, six hundred fifty-six thousand, three hundred fifty".