263141564 has 54 divisors (see below), whose sum is σ = 565510680. Its totient is φ = 106810704.

The previous prime is 263141539. The next prime is 263141573. The reversal of 263141564 is 465141362.

It is a self number, because there is not a number n which added to its sum of digits gives 263141564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 68897 + ... + 72615.

It is an arithmetic number, because the mean of its divisors is an integer number (10472420).

Almost surely, 2^263141564 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 263141564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282755340).

263141564 is an abundant number, since it is smaller than the sum of its proper divisors (302369116).

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

263141564 is a wasteful number, since it uses less digits than its factorization.

263141564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3775 (or 3747 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 263141564 is about 16221.6387581526. The cubic root of 263141564 is about 640.8107920656.

The spelling of 263141564 in words is "two hundred sixty-three million, one hundred forty-one thousand, five hundred sixty-four".