139310477 has 2 divisors, whose sum is σ = 139310478. Its totient is φ = 139310476.

The previous prime is 139310473. The next prime is 139310503. The reversal of 139310477 is 774013931.

139310477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76282756 + 63027721 = 8734^2 + 7939^2 .

It is a cyclic number.

It is not a de Polignac number, because 139310477 - 2² = 139310473 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139310473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69655238 + 69655239.

It is an arithmetic number, because the mean of its divisors is an integer number (69655239).

Almost surely, 2^139310477 is an apocalyptic number.

It is an amenable number.

139310477 is a deficient number, since it is larger than the sum of its proper divisors (1).

139310477 is an equidigital number, since it uses as much as digits as its factorization.

139310477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 139310477 is about 11802.9859357707. The cubic root of 139310477 is about 518.3955439531.

The spelling of 139310477 in words is "one hundred thirty-nine million, three hundred ten thousand, four hundred seventy-seven".