541514540200421 has 4 divisors (see below), whose sum is σ = 541514639749644. Its totient is φ = 541514440651200.

The previous prime is 541514540200399. The next prime is 541514540200451. The reversal of 541514540200421 is 124002045415145.

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 500739751156225 + 40774789044196 = 22377215^2 + 6385514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-541514540200421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541514540200451) 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, 41112650 + ... + 52661931.

It is an arithmetic number, because the mean of its divisors is an integer number (135378659937411).

Almost surely, 2^{541514540200421} is an apocalyptic number.

It is an amenable number.

541514540200421 is a deficient number, since it is larger than the sum of its proper divisors (99549223).

541514540200421 is an equidigital number, since it uses as much as digits as its factorization.

541514540200421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99549222.

The product of its (nonzero) digits is 128000, while the sum is 38.

Adding to 541514540200421 its reverse (124002045415145), we get a palindrome (665516585615566).

The spelling of 541514540200421 in words is "five hundred forty-one trillion, five hundred fourteen billion, five hundred forty million, two hundred thousand, four hundred twenty-one".