156863140 has 96 divisors (see below), whose sum is σ = 391716864. Its totient is φ = 51649920.

The previous prime is 156863101. The next prime is 156863141. The reversal of 156863140 is 41368651.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 156863096 and 156863105.

It is not an unprimeable number, because it can be changed into a prime (156863141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427237 + ... + 427603.

It is an arithmetic number, because the mean of its divisors is an integer number (4080384).

Almost surely, 2^156863140 is an apocalyptic number.

156863140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156863140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195858432).

156863140 is an abundant number, since it is smaller than the sum of its proper divisors (234853724).

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

156863140 is a wasteful number, since it uses less digits than its factorization.

156863140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 156863140 is about 12524.5015868896. The cubic root of 156863140 is about 539.3122703596.

The spelling of 156863140 in words is "one hundred fifty-six million, eight hundred sixty-three thousand, one hundred forty".