156340140 has 48 divisors (see below), whose sum is σ = 477550080. Its totient is φ = 37900480.

The previous prime is 156340139. The next prime is 156340169. The reversal of 156340140 is 41043651.

156340140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 156340140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117780 + ... + 119099.

It is an arithmetic number, because the mean of its divisors is an integer number (9948960).

Almost surely, 2^156340140 is an apocalyptic number.

156340140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156340140 is an abundant number, since it is smaller than the sum of its proper divisors (321209940).

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

156340140 is a wasteful number, since it uses less digits than its factorization.

156340140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236902 (or 236900 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 156340140 is about 12503.6050801359. The cubic root of 156340140 is about 538.7122263268.

Adding to 156340140 its reverse (41043651), we get a palindrome (197383791).

The spelling of 156340140 in words is "one hundred fifty-six million, three hundred forty thousand, one hundred forty".