139080461 has 4 divisors (see below), whose sum is σ = 149778972. Its totient is φ = 128381952.

The previous prime is 139080457. The next prime is 139080463. The reversal of 139080461 is 164080931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164080931 = 7 ⋅23440133.

It can be written as a sum of positive squares in 2 ways, for example, as 11526025 + 127554436 = 3395^2 + 11294^2 .

It is a cyclic number.

It is not a de Polignac number, because 139080461 - 2² = 139080457 is a prime.

It is a super-3 number, since 3×139080461³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139080463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349236 + ... + 5349261.

It is an arithmetic number, because the mean of its divisors is an integer number (37444743).

Almost surely, 2^139080461 is an apocalyptic number.

It is an amenable number.

139080461 is a deficient number, since it is larger than the sum of its proper divisors (10698511).

139080461 is a wasteful number, since it uses less digits than its factorization.

139080461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698510.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 139080461 is about 11793.2379353594. The cubic root of 139080461 is about 518.1100785722.

The spelling of 139080461 in words is "one hundred thirty-nine million, eighty thousand, four hundred sixty-one".