103980156 has 72 divisors (see below), whose sum is σ = 284081616. Its totient is φ = 29514240.

The previous prime is 103980137. The next prime is 103980157. The reversal of 103980156 is 651089301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103980157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105940 + ... + 106916.

It is an arithmetic number, because the mean of its divisors is an integer number (3945578).

Almost surely, 2^103980156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103980156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142040808).

103980156 is an abundant number, since it is smaller than the sum of its proper divisors (180101460).

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

103980156 is a wasteful number, since it uses less digits than its factorization.

103980156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 103980156 is about 10197.0660486240. The cubic root of 103980156 is about 470.2370254585.

The spelling of 103980156 in words is "one hundred three million, nine hundred eighty thousand, one hundred fifty-six".