7121741 has 8 divisors (see below), whose sum is σ = 7959168. Its totient is φ = 6316000.

The previous prime is 7121731. The next prime is 7121761. The reversal of 7121741 is 1471217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7121741 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 (7121701) 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 7 ways as a sum of consecutive naturals, for example, 7445 + ... + 8346.

It is an arithmetic number, because the mean of its divisors is an integer number (994896).

Almost surely, 2^7121741 is an apocalyptic number.

It is an amenable number.

7121741 is a deficient number, since it is larger than the sum of its proper divisors (837427).

7121741 is a wasteful number, since it uses less digits than its factorization.

7121741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15843.

The product of its digits is 392, while the sum is 23.

The square root of 7121741 is about 2668.6590265525. The cubic root of 7121741 is about 192.3957134575.

Adding to 7121741 its reverse (1471217), we get a palindrome (8592958).

It can be divided in two parts, 71 and 21741, that added together give a palindrome (21812).

The spelling of 7121741 in words is "seven million, one hundred twenty-one thousand, seven hundred forty-one".