621158041 has 4 divisors (see below), whose sum is σ = 709894912. Its totient is φ = 532421172.

The previous prime is 621158023. The next prime is 621158081. The reversal of 621158041 is 140851126.

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 a cyclic number.

It is not a de Polignac number, because 621158041 - 2¹¹ = 621155993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (621158081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44368425 + ... + 44368438.

It is an arithmetic number, because the mean of its divisors is an integer number (177473728).

Almost surely, 2^621158041 is an apocalyptic number.

It is an amenable number.

621158041 is a deficient number, since it is larger than the sum of its proper divisors (88736871).

621158041 is an equidigital number, since it uses as much as digits as its factorization.

621158041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88736870.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 621158041 is about 24923.0423704651. The cubic root of 621158041 is about 853.2324626285.

The spelling of 621158041 in words is "six hundred twenty-one million, one hundred fifty-eight thousand, forty-one".