121878070 has 32 divisors (see below), whose sum is σ = 224259840. Its totient is φ = 47676000.

The previous prime is 121878059. The next prime is 121878089. The reversal of 121878070 is 70878121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147679 + ... + 148501.

It is an arithmetic number, because the mean of its divisors is an integer number (7008120).

Almost surely, 2^121878070 is an apocalyptic number.

121878070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121878070 is a deficient number, since it is larger than the sum of its proper divisors (102381770).

121878070 is a wasteful number, since it uses less digits than its factorization.

121878070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 121878070 is about 11039.8401256540. The cubic root of 121878070 is about 495.8022836444.

The spelling of 121878070 in words is "one hundred twenty-one million, eight hundred seventy-eight thousand, seventy".