541161620 has 24 divisors (see below), whose sum is σ = 1137772104. Its totient is φ = 216210816.

The previous prime is 541161587. The next prime is 541161623. The reversal of 541161620 is 26161145.

It can be written as a sum of positive squares in 4 ways, for example, as 42354064 + 498807556 = 6508^2 + 22334^2 .

It is a super-2 number, since 2×541161620² = 585711797922048800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 541161620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541161623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2114 + ... + 32966.

It is an arithmetic number, because the mean of its divisors is an integer number (47407171).

Almost surely, 2^541161620 is an apocalyptic number.

It is an amenable number.

541161620 is an abundant number, since it is smaller than the sum of its proper divisors (596610484).

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

541161620 is a wasteful number, since it uses less digits than its factorization.

541161620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31739 (or 31737 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 541161620 is about 23262.8807330477. The cubic root of 541161620 is about 814.9087782277.

The spelling of 541161620 in words is "five hundred forty-one million, one hundred sixty-one thousand, six hundred twenty".