121902677 has 8 divisors (see below), whose sum is σ = 132756120. Its totient is φ = 111260160.

The previous prime is 121902661. The next prime is 121902707. The reversal of 121902677 is 776209121.

It can be written as a sum of positive squares in 4 ways, for example, as 6791236 + 115111441 = 2606^2 + 10729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121902677 - 2⁴ = 121902661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121902607) 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, 51524 + ... + 53837.

It is an arithmetic number, because the mean of its divisors is an integer number (16594515).

Almost surely, 2^121902677 is an apocalyptic number.

It is an amenable number.

121902677 is a deficient number, since it is larger than the sum of its proper divisors (10853443).

121902677 is a wasteful number, since it uses less digits than its factorization.

121902677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105463.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 121902677 is about 11040.9545330103. The cubic root of 121902677 is about 495.8356486455.

The spelling of 121902677 in words is "one hundred twenty-one million, nine hundred two thousand, six hundred seventy-seven".