120838477 has 2 divisors, whose sum is σ = 120838478. Its totient is φ = 120838476.

The previous prime is 120838469. The next prime is 120838483. The reversal of 120838477 is 774838021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61763881 + 59074596 = 7859^2 + 7686^2 .

It is an emirp because it is prime and its reverse (774838021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120838477 - 2³ = 120838469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120838877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60419238 + 60419239.

It is an arithmetic number, because the mean of its divisors is an integer number (60419239).

Almost surely, 2^120838477 is an apocalyptic number.

It is an amenable number.

120838477 is a deficient number, since it is larger than the sum of its proper divisors (1).

120838477 is an equidigital number, since it uses as much as digits as its factorization.

120838477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 120838477 is about 10992.6555936225. The cubic root of 120838477 is about 494.3885617813.

The spelling of 120838477 in words is "one hundred twenty million, eight hundred thirty-eight thousand, four hundred seventy-seven".