121387706 has 16 divisors (see below), whose sum is σ = 201434688. Its totient is φ = 54398400.

The previous prime is 121387703. The next prime is 121387709. The reversal of 121387706 is 607783121.

It is an interprime number because it is at equal distance from previous prime (121387703) and next prime (121387709).

It is not an unprimeable number, because it can be changed into a prime (121387703) 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, 37295 + ... + 40418.

It is an arithmetic number, because the mean of its divisors is an integer number (12589668).

Almost surely, 2^121387706 is an apocalyptic number.

121387706 is a deficient number, since it is larger than the sum of its proper divisors (80046982).

121387706 is a wasteful number, since it uses less digits than its factorization.

121387706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77797.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 121387706 is about 11017.6089057472. The cubic root of 121387706 is about 495.1364532157.

The spelling of 121387706 in words is "one hundred twenty-one million, three hundred eighty-seven thousand, seven hundred six".