121077427 has 4 divisors (see below), whose sum is σ = 122253040. Its totient is φ = 119901816.

The previous prime is 121077419. The next prime is 121077433. The reversal of 121077427 is 724770121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724770121 = 149 ⋅4864229.

It is a cyclic number.

It is not a de Polignac number, because 121077427 - 2³ = 121077419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121027427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587652 + ... + 587857.

It is an arithmetic number, because the mean of its divisors is an integer number (30563260).

Almost surely, 2^121077427 is an apocalyptic number.

121077427 is a deficient number, since it is larger than the sum of its proper divisors (1175613).

121077427 is a wasteful number, since it uses less digits than its factorization.

121077427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175612.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 121077427 is about 11003.5188462600. The cubic root of 121077427 is about 494.7142206491.

The spelling of 121077427 in words is "one hundred twenty-one million, seventy-seven thousand, four hundred twenty-seven".