121848690 has 32 divisors (see below), whose sum is σ = 309640320. Its totient is φ = 30581504.

The previous prime is 121848667. The next prime is 121848697. The reversal of 121848690 is 96848121.

It is a super-2 number, since 2×121848690² = 29694206509432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121848697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118950 + ... + 119969.

It is an arithmetic number, because the mean of its divisors is an integer number (9676260).

Almost surely, 2^121848690 is an apocalyptic number.

121848690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121848690 is an abundant number, since it is smaller than the sum of its proper divisors (187791630).

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

121848690 is a wasteful number, since it uses less digits than its factorization.

121848690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238946.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 121848690 is about 11038.5094102419. The cubic root of 121848690 is about 495.7624409783.

The spelling of 121848690 in words is "one hundred twenty-one million, eight hundred forty-eight thousand, six hundred ninety".