139263064 has 8 divisors (see below), whose sum is σ = 261118260. Its totient is φ = 69631528.

The previous prime is 139263041. The next prime is 139263071. The reversal of 139263064 is 460362931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8703934 + ... + 8703949.

Almost surely, 2^139263064 is an apocalyptic number.

It is an amenable number.

139263064 is a deficient number, since it is larger than the sum of its proper divisors (121855196).

139263064 is a wasteful number, since it uses less digits than its factorization.

139263064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17407889 (or 17407885 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 139263064 is about 11800.9772476689. The cubic root of 139263064 is about 518.3367269439.

The spelling of 139263064 in words is "one hundred thirty-nine million, two hundred sixty-three thousand, sixty-four".