121689614 has 4 divisors (see below), whose sum is σ = 182534424. Its totient is φ = 60844806.

The previous prime is 121689583. The next prime is 121689647. The reversal of 121689614 is 416986121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 416986121 = 11161 ⋅37361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30422402 + ... + 30422405.

It is an arithmetic number, because the mean of its divisors is an integer number (45633606).

Almost surely, 2^121689614 is an apocalyptic number.

121689614 is a deficient number, since it is larger than the sum of its proper divisors (60844810).

121689614 is an equidigital number, since it uses as much as digits as its factorization.

121689614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60844809.

The product of its digits is 20736, while the sum is 38.

The square root of 121689614 is about 11031.3015551203. The cubic root of 121689614 is about 495.5466042974.

The spelling of 121689614 in words is "one hundred twenty-one million, six hundred eighty-nine thousand, six hundred fourteen".