139049530 has 16 divisors (see below), whose sum is σ = 256110624. Its totient is φ = 54326160.

The previous prime is 139049509. The next prime is 139049569. The reversal of 139049530 is 35940931.

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 in 7 ways as a sum of consecutive naturals, for example, 161256 + ... + 162115.

It is an arithmetic number, because the mean of its divisors is an integer number (16006914).

Almost surely, 2^139049530 is an apocalyptic number.

139049530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139049530 is a deficient number, since it is larger than the sum of its proper divisors (117061094).

139049530 is a wasteful number, since it uses less digits than its factorization.

139049530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323421.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 139049530 is about 11791.9264753474. The cubic root of 139049530 is about 518.0716671114.

The spelling of 139049530 in words is "one hundred thirty-nine million, forty-nine thousand, five hundred thirty".