139760461 has 2 divisors, whose sum is σ = 139760462. Its totient is φ = 139760460.

The previous prime is 139760437. The next prime is 139760501. The reversal of 139760461 is 164067931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117614025 + 22146436 = 10845^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 139760461 - 2¹¹ = 139758413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139760461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139763461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69880230 + 69880231.

It is an arithmetic number, because the mean of its divisors is an integer number (69880231).

Almost surely, 2^139760461 is an apocalyptic number.

It is an amenable number.

139760461 is a deficient number, since it is larger than the sum of its proper divisors (1).

139760461 is an equidigital number, since it uses as much as digits as its factorization.

139760461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 139760461 is about 11822.0328624141. The cubic root of 139760461 is about 518.9530971136.

The spelling of 139760461 in words is "one hundred thirty-nine million, seven hundred sixty thousand, four hundred sixty-one".