139470312 has 32 divisors (see below), whose sum is σ = 369187200. Its totient is φ = 43755264.

The previous prime is 139470311. The next prime is 139470319. The reversal of 139470312 is 213074931.

It is a self number, because there is not a number n which added to its sum of digits gives 139470312.

It is not an unprimeable number, because it can be changed into a prime (139470311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170512 + ... + 171327.

It is an arithmetic number, because the mean of its divisors is an integer number (11537100).

Almost surely, 2^139470312 is an apocalyptic number.

139470312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139470312 is an abundant number, since it is smaller than the sum of its proper divisors (229716888).

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

139470312 is a wasteful number, since it uses less digits than its factorization.

139470312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341865 (or 341861 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 139470312 is about 11809.7549508870. The cubic root of 139470312 is about 518.5937249881.

The spelling of 139470312 in words is "one hundred thirty-nine million, four hundred seventy thousand, three hundred twelve".