121987934 has 16 divisors (see below), whose sum is σ = 184531776. Its totient is φ = 60480000.

The previous prime is 121987933. The next prime is 121987967. The reversal of 121987934 is 439789121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121987933) 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, 162059 + ... + 162809.

It is an arithmetic number, because the mean of its divisors is an integer number (11533236).

Almost surely, 2^121987934 is an apocalyptic number.

121987934 is a deficient number, since it is larger than the sum of its proper divisors (62543842).

121987934 is a wasteful number, since it uses less digits than its factorization.

121987934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331.

The product of its digits is 108864, while the sum is 44.

The square root of 121987934 is about 11044.8148015256. The cubic root of 121987934 is about 495.9512151767.

The spelling of 121987934 in words is "one hundred twenty-one million, nine hundred eighty-seven thousand, nine hundred thirty-four".