139807654 has 16 divisors (see below), whose sum is σ = 241502976. Its totient is φ = 59459400.

The previous prime is 139807631. The next prime is 139807667. The reversal of 139807654 is 456708931.

It is a self number, because there is not a number n which added to its sum of digits gives 139807654.

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 in 7 ways as a sum of consecutive naturals, for example, 36282 + ... + 39949.

It is an arithmetic number, because the mean of its divisors is an integer number (15093936).

Almost surely, 2^139807654 is an apocalyptic number.

139807654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

139807654 is a deficient number, since it is larger than the sum of its proper divisors (101695322).

139807654 is a wasteful number, since it uses less digits than its factorization.

139807654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76371.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 139807654 is about 11824.0286704659. The cubic root of 139807654 is about 519.0115022764.

The spelling of 139807654 in words is "one hundred thirty-nine million, eight hundred seven thousand, six hundred fifty-four".