139005077 has 8 divisors (see below), whose sum is σ = 145475136. Its totient is φ = 132570592.

The previous prime is 139005049. The next prime is 139005079. The reversal of 139005077 is 770500931.

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

It is a cyclic number.

It is not a de Polignac number, because 139005077 - 2²⁰ = 137956501 is a prime.

It is a super-2 number, since 2×139005077² = 38644822863551858, which contains 22 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 (139005079) 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, 728 + ... + 16689.

It is an arithmetic number, because the mean of its divisors is an integer number (18184392).

Almost surely, 2^139005077 is an apocalyptic number.

It is an amenable number.

139005077 is a deficient number, since it is larger than the sum of its proper divisors (6470059).

139005077 is a wasteful number, since it uses less digits than its factorization.

139005077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17787.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 139005077 is about 11790.0414333453. The cubic root of 139005077 is about 518.0164534658.

The spelling of 139005077 in words is "one hundred thirty-nine million, five thousand, seventy-seven".