541392881 has 4 divisors (see below), whose sum is σ = 542944500. Its totient is φ = 539841264.

The previous prime is 541392877. The next prime is 541392913. The reversal of 541392881 is 188293145.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 245862400 + 295530481 = 15680^2 + 17191^2 .

It is a cyclic number.

It is not a de Polignac number, because 541392881 - 2² = 541392877 is a prime.

It is a super-2 number, since 2×541392881² = 586212503194960322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541392581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775286 + ... + 775983.

It is an arithmetic number, because the mean of its divisors is an integer number (135736125).

Almost surely, 2^541392881 is an apocalyptic number.

It is an amenable number.

541392881 is a deficient number, since it is larger than the sum of its proper divisors (1551619).

541392881 is a wasteful number, since it uses less digits than its factorization.

541392881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551618.

The product of its digits is 69120, while the sum is 41.

The square root of 541392881 is about 23267.8508032005. The cubic root of 541392881 is about 815.0248432338.

The spelling of 541392881 in words is "five hundred forty-one million, three hundred ninety-two thousand, eight hundred eighty-one".