356121041 has 4 divisors (see below), whose sum is σ = 365745972. Its totient is φ = 346496112.

The previous prime is 356121001. The next prime is 356121097. The reversal of 356121041 is 140121653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140121653 = 7 ⋅20017379.

It can be written as a sum of positive squares in 2 ways, for example, as 317730625 + 38390416 = 17825^2 + 6196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-356121041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 356120998 and 356121016.

It is not an unprimeable number, because it can be changed into a prime (356121001) 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, 4812410 + ... + 4812483.

It is an arithmetic number, because the mean of its divisors is an integer number (91436493).

Almost surely, 2^356121041 is an apocalyptic number.

It is an amenable number.

356121041 is a deficient number, since it is larger than the sum of its proper divisors (9624931).

356121041 is an equidigital number, since it uses as much as digits as its factorization.

356121041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624930.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 356121041 is about 18871.1695715978. The cubic root of 356121041 is about 708.8144209107.

Adding to 356121041 its reverse (140121653), we get a palindrome (496242694).

The spelling of 356121041 in words is "three hundred fifty-six million, one hundred twenty-one thousand, forty-one".