121695836 has 12 divisors (see below), whose sum is σ = 224176680. Its totient is φ = 57645360.

The previous prime is 121695811. The next prime is 121695851. The reversal of 121695836 is 638596121.

It is a junction number, because it is equal to n+sod(n) for n = 121695793 and 121695802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800555 + ... + 800706.

It is an arithmetic number, because the mean of its divisors is an integer number (18681390).

Almost surely, 2^121695836 is an apocalyptic number.

It is an amenable number.

121695836 is a deficient number, since it is larger than the sum of its proper divisors (102480844).

121695836 is a wasteful number, since it uses less digits than its factorization.

121695836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601284 (or 1601282 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 121695836 is about 11031.5835671947. The cubic root of 121695836 is about 495.5550499331. Note that the first 3 decimals are identical.

The spelling of 121695836 in words is "one hundred twenty-one million, six hundred ninety-five thousand, eight hundred thirty-six".