139912470 has 24 divisors (see below), whose sum is σ = 363772656. Its totient is φ = 37309968.

The previous prime is 139912453. The next prime is 139912489. The reversal of 139912470 is 74219931.

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 11 ways as a sum of consecutive naturals, for example, 777202 + ... + 777381.

It is an arithmetic number, because the mean of its divisors is an integer number (15157194).

Almost surely, 2^139912470 is an apocalyptic number.

139912470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139912470 is an abundant number, since it is smaller than the sum of its proper divisors (223860186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139912470 is a wasteful number, since it uses less digits than its factorization.

139912470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554596 (or 1554593 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 139912470 is about 11828.4601702842. The cubic root of 139912470 is about 519.1411735753.

It can be divided in two parts, 13991 and 2470, that added together give a palindrome (16461).

The spelling of 139912470 in words is "one hundred thirty-nine million, nine hundred twelve thousand, four hundred seventy".