139628970 has 96 divisors (see below), whose sum is σ = 394377984. Its totient is φ = 34070400.

The previous prime is 139628953. The next prime is 139629001. The reversal of 139628970 is 79826931.

139628970 is a `hidden beast` number, since 13 + 9 + 628 + 9 + 7 + 0 = 666.

139628970 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 152815 + ... + 153725.

It is an arithmetic number, because the mean of its divisors is an integer number (4108104).

Almost surely, 2^139628970 is an apocalyptic number.

139628970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139628970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197188992).

139628970 is an abundant number, since it is smaller than the sum of its proper divisors (254749014).

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

139628970 is a wasteful number, since it uses less digits than its factorization.

139628970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 139628970 is about 11816.4702851571. The cubic root of 139628970 is about 518.7902969615.

The spelling of 139628970 in words is "one hundred thirty-nine million, six hundred twenty-eight thousand, nine hundred seventy".