140815206 has 128 divisors (see below), whose sum is σ = 377118720. Its totient is φ = 38102400.

The previous prime is 140815193. The next prime is 140815219. The reversal of 140815206 is 602518041.

It is an interprime number because it is at equal distance from previous prime (140815193) and next prime (140815219).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 140815206.

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 63 ways as a sum of consecutive naturals, for example, 714700 + ... + 714896.

It is an arithmetic number, because the mean of its divisors is an integer number (2946240).

Almost surely, 2^140815206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140815206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188559360).

140815206 is an abundant number, since it is smaller than the sum of its proper divisors (236303514).

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

140815206 is a wasteful number, since it uses less digits than its factorization.

140815206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 140815206 is about 11866.5583047487. The cubic root of 140815206 is about 520.2553060906.

The spelling of 140815206 in words is "one hundred forty million, eight hundred fifteen thousand, two hundred six".