541515121 has 6 divisors (see below), whose sum is σ = 629925810. Its totient is φ = 464155776.

The previous prime is 541515119. The next prime is 541515133. The reversal of 541515121 is 121515145.

It can be written as a sum of positive squares in only one way, i.e., 312900721 + 228614400 = 17689^2 + 15120^2 .

It is not a de Polignac number, because 541515121 - 2¹ = 541515119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541515421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5525616 + ... + 5525713.

It is an arithmetic number, because the mean of its divisors is an integer number (104987635).

Almost surely, 2^541515121 is an apocalyptic number.

It is an amenable number.

541515121 is a deficient number, since it is larger than the sum of its proper divisors (88410689).

541515121 is a wasteful number, since it uses less digits than its factorization.

541515121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11051343 (or 11051336 counting only the distinct ones).

The product of its digits is 1000, while the sum is 25.

The square root of 541515121 is about 23270.4774553510. The cubic root of 541515121 is about 815.0861795529.

The spelling of 541515121 in words is "five hundred forty-one million, five hundred fifteen thousand, one hundred twenty-one".