356812241 has 4 divisors (see below), whose sum is σ = 362661684. Its totient is φ = 350962800.

The previous prime is 356812223. The next prime is 356812243. The reversal of 356812241 is 142218653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142218653 = 1657 ⋅85829.

It can be written as a sum of positive squares in 2 ways, for example, as 56310016 + 300502225 = 7504^2 + 17335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-356812241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 356812198 and 356812207.

It is not an unprimeable number, because it can be changed into a prime (356812243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2924630 + ... + 2924751.

It is an arithmetic number, because the mean of its divisors is an integer number (90665421).

Almost surely, 2^356812241 is an apocalyptic number.

It is an amenable number.

356812241 is a deficient number, since it is larger than the sum of its proper divisors (5849443).

356812241 is an equidigital number, since it uses as much as digits as its factorization.

356812241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5849442.

The product of its digits is 11520, while the sum is 32.

The square root of 356812241 is about 18889.4743441950. The cubic root of 356812241 is about 709.2727069432.

The spelling of 356812241 in words is "three hundred fifty-six million, eight hundred twelve thousand, two hundred forty-one".