120877139 has 2 divisors, whose sum is σ = 120877140. Its totient is φ = 120877138.

The previous prime is 120877129. The next prime is 120877193. The reversal of 120877139 is 931778021.

Together with next prime (120877193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120877139 - 2⁸ = 120876883 is a prime.

It is a super-2 number, since 2×120877139² = 29222565465650642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120877109) 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 as a sum of consecutive naturals, namely, 60438569 + 60438570.

It is an arithmetic number, because the mean of its divisors is an integer number (60438570).

Almost surely, 2^120877139 is an apocalyptic number.

120877139 is a deficient number, since it is larger than the sum of its proper divisors (1).

120877139 is an equidigital number, since it uses as much as digits as its factorization.

120877139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 120877139 is about 10994.4139907500. The cubic root of 120877139 is about 494.4412823300.

The spelling of 120877139 in words is "one hundred twenty million, eight hundred seventy-seven thousand, one hundred thirty-nine".