565198140 has 96 divisors (see below), whose sum is σ = 1714890240. Its totient is φ = 138260736.

The previous prime is 565198103. The next prime is 565198141. The reversal of 565198140 is 41891565.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565198141) 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, 128091 + ... + 132429.

It is an arithmetic number, because the mean of its divisors is an integer number (17863440).

Almost surely, 2^565198140 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 565198140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (857445120).

565198140 is an abundant number, since it is smaller than the sum of its proper divisors (1149692100).

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

565198140 is a wasteful number, since it uses less digits than its factorization.

565198140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531 (or 4529 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 565198140 is about 23773.8961888875. The cubic root of 565198140 is about 826.7995685417.

The spelling of 565198140 in words is "five hundred sixty-five million, one hundred ninety-eight thousand, one hundred forty".