139859377 has 6 divisors (see below), whose sum is σ = 162693618. Its totient is φ = 119879424.

The previous prime is 139859359. The next prime is 139859393. The reversal of 139859377 is 773958931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 71978256 + 67881121 = 8484^2 + 8239^2 .

It is not a de Polignac number, because 139859377 - 2¹¹ = 139857329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139859347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1427088 + ... + 1427185.

It is an arithmetic number, because the mean of its divisors is an integer number (27115603).

Almost surely, 2^139859377 is an apocalyptic number.

It is an amenable number.

139859377 is a deficient number, since it is larger than the sum of its proper divisors (22834241).

139859377 is an equidigital number, since it uses as much as digits as its factorization.

139859377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854287 (or 2854280 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 52.

The square root of 139859377 is about 11826.2156668987. The cubic root of 139859377 is about 519.0754985869.

The spelling of 139859377 in words is "one hundred thirty-nine million, eight hundred fifty-nine thousand, three hundred seventy-seven".