121057877 has 4 divisors (see below), whose sum is σ = 121111596. Its totient is φ = 121004160.

The previous prime is 121057841. The next prime is 121057897. The reversal of 121057877 is 778750121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778750121 = 1559 ⋅499519.

It can be written as a sum of positive squares in 2 ways, for example, as 11771761 + 109286116 = 3431^2 + 10454^2 .

It is a cyclic number.

It is not a de Polignac number, because 121057877 - 2⁶ = 121057813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121057877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121057837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23324 + ... + 28037.

It is an arithmetic number, because the mean of its divisors is an integer number (30277899).

Almost surely, 2^121057877 is an apocalyptic number.

It is an amenable number.

121057877 is a deficient number, since it is larger than the sum of its proper divisors (53719).

121057877 is an equidigital number, since it uses as much as digits as its factorization.

121057877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53718.

The product of its (nonzero) digits is 27440, while the sum is 38.

The square root of 121057877 is about 11002.6304582132. The cubic root of 121057877 is about 494.6875925543.

The spelling of 121057877 in words is "one hundred twenty-one million, fifty-seven thousand, eight hundred seventy-seven".