121975610 has 16 divisors (see below), whose sum is σ = 219683232. Its totient is φ = 48762000.

The previous prime is 121975603. The next prime is 121975619. The reversal of 121975610 is 16579121.

It is not an unprimeable number, because it can be changed into a prime (121975619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28085 + ... + 32135.

It is an arithmetic number, because the mean of its divisors is an integer number (13730202).

Almost surely, 2^121975610 is an apocalyptic number.

121975610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121975610 is a deficient number, since it is larger than the sum of its proper divisors (97707622).

121975610 is a wasteful number, since it uses less digits than its factorization.

121975610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7069.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 121975610 is about 11044.2568785772. The cubic root of 121975610 is about 495.9345132281.

The spelling of 121975610 in words is "one hundred twenty-one million, nine hundred seventy-five thousand, six hundred ten".