139258070 has 16 divisors (see below), whose sum is σ = 286473888. Its totient is φ = 47745600.

The previous prime is 139258069. The next prime is 139258079. The reversal of 139258070 is 70852931.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 139258070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139258079) by changing a digit.

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, 994631 + ... + 994770.

It is an arithmetic number, because the mean of its divisors is an integer number (17904618).

Almost surely, 2^139258070 is an apocalyptic number.

139258070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139258070 is an abundant number, since it is smaller than the sum of its proper divisors (147215818).

139258070 is a wasteful number, since it uses less digits than its factorization.

139258070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989415.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 139258070 is about 11800.7656531261. The cubic root of 139258070 is about 518.3305309852.

The spelling of 139258070 in words is "one hundred thirty-nine million, two hundred fifty-eight thousand, seventy".