215198041 has 2 divisors, whose sum is σ = 215198042. Its totient is φ = 215198040.

The previous prime is 215198033. The next prime is 215198069. The reversal of 215198041 is 140891512.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202920025 + 12278016 = 14245^2 + 3504^2 .

It is a cyclic number.

It is not a de Polignac number, because 215198041 - 2³ = 215198033 is a prime.

It is equal to p_11872633 and since 215198041 and 11872633 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 215197994 and 215198012.

It is not a weakly prime, because it can be changed into another prime (215198021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107599020 + 107599021.

It is an arithmetic number, because the mean of its divisors is an integer number (107599021).

Almost surely, 2^215198041 is an apocalyptic number.

It is an amenable number.

215198041 is a deficient number, since it is larger than the sum of its proper divisors (1).

215198041 is an equidigital number, since it uses as much as digits as its factorization.

215198041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 215198041 is about 14669.6298862650. The cubic root of 215198041 is about 599.2565244912.

The spelling of 215198041 in words is "two hundred fifteen million, one hundred ninety-eight thousand, forty-one".