1617112140 has 48 divisors (see below), whose sum is σ = 5174760192. Its totient is φ = 369625536.

The previous prime is 1617112109. The next prime is 1617112141. The reversal of 1617112140 is 412117161.

It is a self number, because there is not a number n which added to its sum of digits gives 1617112140.

It is not an unprimeable number, because it can be changed into a prime (1617112141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1924714 + ... + 1925553.

It is an arithmetic number, because the mean of its divisors is an integer number (107807504).

Almost surely, 2^1617112140 is an apocalyptic number.

1617112140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1617112140 is an abundant number, since it is smaller than the sum of its proper divisors (3557648052).

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

1617112140 is a wasteful number, since it uses less digits than its factorization.

1617112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850286 (or 3850284 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 1617112140 is about 40213.3328636163. The cubic root of 1617112140 is about 1173.7620013494.

The spelling of 1617112140 in words is "one billion, six hundred seventeen million, one hundred twelve thousand, one hundred forty".