541187813 has 4 divisors (see below), whose sum is σ = 543185088. Its totient is φ = 539190540.

The previous prime is 541187807. The next prime is 541187819. The reversal of 541187813 is 318781145.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (541187807) and next prime (541187819).

It is a cyclic number.

It is not a de Polignac number, because 541187813 - 2⁴ = 541187797 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 (541187819) 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, 998231 + ... + 998772.

It is an arithmetic number, because the mean of its divisors is an integer number (135796272).

Almost surely, 2^541187813 is an apocalyptic number.

It is an amenable number.

541187813 is a deficient number, since it is larger than the sum of its proper divisors (1997275).

541187813 is a wasteful number, since it uses less digits than its factorization.

541187813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997274.

The product of its digits is 26880, while the sum is 38.

The square root of 541187813 is about 23263.4437046625. The cubic root of 541187813 is about 814.9219256009.

The spelling of 541187813 in words is "five hundred forty-one million, one hundred eighty-seven thousand, eight hundred thirteen".