139485777 has 8 divisors (see below), whose sum is σ = 194067264. Its totient is φ = 88947408.

The previous prime is 139485761. The next prime is 139485779. The reversal of 139485777 is 777584931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139485777 - 2⁴ = 139485761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139485779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010698 + ... + 1010835.

It is an arithmetic number, because the mean of its divisors is an integer number (24258408).

Almost surely, 2^139485777 is an apocalyptic number.

It is an amenable number.

139485777 is a deficient number, since it is larger than the sum of its proper divisors (54581487).

139485777 is a wasteful number, since it uses less digits than its factorization.

139485777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021559.

The product of its digits is 1481760, while the sum is 51.

The square root of 139485777 is about 11810.4096880676. The cubic root of 139485777 is about 518.6128921629.

The spelling of 139485777 in words is "one hundred thirty-nine million, four hundred eighty-five thousand, seven hundred seventy-seven".