121694903 has 12 divisors (see below), whose sum is σ = 135005640. Its totient is φ = 109604880.

The previous prime is 121694893. The next prime is 121694921. The reversal of 121694903 is 309496121.

It is a de Polignac number, because none of the positive numbers 2^k-121694903 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121694983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8576 + ... + 17802.

It is an arithmetic number, because the mean of its divisors is an integer number (11250470).

Almost surely, 2^121694903 is an apocalyptic number.

121694903 is a deficient number, since it is larger than the sum of its proper divisors (13310737).

121694903 is a wasteful number, since it uses less digits than its factorization.

121694903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358 (or 9347 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 121694903 is about 11031.5412794405. The cubic root of 121694903 is about 495.5537835133.

The spelling of 121694903 in words is "one hundred twenty-one million, six hundred ninety-four thousand, nine hundred three".