139035830 has 8 divisors (see below), whose sum is σ = 250264512. Its totient is φ = 55614328.

The previous prime is 139035829. The next prime is 139035847. The reversal of 139035830 is 38530931.

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

It is a congruent number.

It is an unprimeable number.

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, 6951782 + ... + 6951801.

It is an arithmetic number, because the mean of its divisors is an integer number (31283064).

Almost surely, 2^139035830 is an apocalyptic number.

139035830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139035830 is a deficient number, since it is larger than the sum of its proper divisors (111228682).

139035830 is a wasteful number, since it uses less digits than its factorization.

139035830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13903590.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 139035830 is about 11791.3455551095. The cubic root of 139035830 is about 518.0546520354.

The spelling of 139035830 in words is "one hundred thirty-nine million, thirty-five thousand, eight hundred thirty".