356121133 has 2 divisors, whose sum is σ = 356121134. Its totient is φ = 356121132.

The previous prime is 356121113. The next prime is 356121137. The reversal of 356121133 is 331121653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200420649 + 155700484 = 14157^2 + 12478^2 .

It is an emirp because it is prime and its reverse (331121653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 356121133 - 2²⁵ = 322566701 is a prime.

It is a super-2 number, since 2×356121133² = 253644522738407378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 356121098 and 356121107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (356121137) 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 as a sum of consecutive naturals, namely, 178060566 + 178060567.

It is an arithmetic number, because the mean of its divisors is an integer number (178060567).

Almost surely, 2^356121133 is an apocalyptic number.

It is an amenable number.

356121133 is a deficient number, since it is larger than the sum of its proper divisors (1).

356121133 is an equidigital number, since it uses as much as digits as its factorization.

356121133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 25.

The square root of 356121133 is about 18871.1720091784. The cubic root of 356121133 is about 708.8144819488.

Adding to 356121133 its reverse (331121653), we get a palindrome (687242786).

The spelling of 356121133 in words is "three hundred fifty-six million, one hundred twenty-one thousand, one hundred thirty-three".