241625721 has 4 divisors (see below), whose sum is σ = 322167632. Its totient is φ = 161083812.

The previous prime is 241625719. The next prime is 241625723. The reversal of 241625721 is 127526142.

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 (241625719) and next prime (241625723).

It is not a de Polignac number, because 241625721 - 2¹ = 241625719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241625723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40270951 + ... + 40270956.

It is an arithmetic number, because the mean of its divisors is an integer number (80541908).

Almost surely, 2^241625721 is an apocalyptic number.

It is an amenable number.

241625721 is a deficient number, since it is larger than the sum of its proper divisors (80541911).

241625721 is an equidigital number, since it uses as much as digits as its factorization.

241625721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80541910.

The product of its digits is 6720, while the sum is 30.

The square root of 241625721 is about 15544.3147484860. The cubic root of 241625721 is about 622.8465372657.

The spelling of 241625721 in words is "two hundred forty-one million, six hundred twenty-five thousand, seven hundred twenty-one".