7121549241 has 28 divisors (see below), whose sum is σ = 10685080560. Its totient is φ = 4744302840.

The previous prime is 7121549233. The next prime is 7121549251. The reversal of 7121549241 is 1429451217.

7121549241 is a `hidden beast` number, since 7 + 121 + 5 + 492 + 41 = 666.

It is not a de Polignac number, because 7121549241 - 2³ = 7121549233 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7121549196 and 7121549205.

It is not an unprimeable number, because it can be changed into a prime (7121549231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1405170 + ... + 1410228.

It is an arithmetic number, because the mean of its divisors is an integer number (381610020).

Almost surely, 2^7121549241 is an apocalyptic number.

It is an amenable number.

7121549241 is a deficient number, since it is larger than the sum of its proper divisors (3563531319).

7121549241 is an equidigital number, since it uses as much as digits as its factorization.

7121549241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008 (or 6993 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 7121549241 is about 84389.2720729359. The cubic root of 7121549241 is about 1923.9398663532.

The spelling of 7121549241 in words is "seven billion, one hundred twenty-one million, five hundred forty-nine thousand, two hundred forty-one".