121137677 has 4 divisors (see below), whose sum is σ = 125045376. Its totient is φ = 117229980.

The previous prime is 121137661. The next prime is 121137697. The reversal of 121137677 is 776731121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121137677 - 2⁴ = 121137661 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 (121137607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1953803 + ... + 1953864.

It is an arithmetic number, because the mean of its divisors is an integer number (31261344).

Almost surely, 2^121137677 is an apocalyptic number.

It is an amenable number.

121137677 is a deficient number, since it is larger than the sum of its proper divisors (3907699).

121137677 is an equidigital number, since it uses as much as digits as its factorization.

121137677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907698.

The product of its digits is 12348, while the sum is 35.

The square root of 121137677 is about 11006.2562663242. The cubic root of 121137677 is about 494.7962661903.

Adding to 121137677 its reverse (776731121), we get a palindrome (897868798).

The spelling of 121137677 in words is "one hundred twenty-one million, one hundred thirty-seven thousand, six hundred seventy-seven".