139512055430 has 32 divisors (see below), whose sum is σ = 274620840480. Its totient is φ = 50607601920.

The previous prime is 139512055429. The next prime is 139512055469. The reversal of 139512055430 is 34550215931.

It is a super-2 number, since 2×139512055430² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1505489 + ... + 1595468.

It is an arithmetic number, because the mean of its divisors is an integer number (8581901265).

Almost surely, 2^139512055430 is an apocalyptic number.

139512055430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139512055430 is a deficient number, since it is larger than the sum of its proper divisors (135108785050).

139512055430 is a wasteful number, since it uses less digits than its factorization.

139512055430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101384.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 139512055430 in words is "one hundred thirty-nine billion, five hundred twelve million, fifty-five thousand, four hundred thirty".