215748041 has 2 divisors, whose sum is σ = 215748042. Its totient is φ = 215748040.

The previous prime is 215748017. The next prime is 215748101. The reversal of 215748041 is 140847512.

It is a happy number.

215748041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134676025 + 81072016 = 11605^2 + 9004^2 .

It is a cyclic number.

It is not a de Polignac number, because 215748041 - 2²² = 211553737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215747989 and 215748007.

It is not a weakly prime, because it can be changed into another prime (215741041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107874020 + 107874021.

It is an arithmetic number, because the mean of its divisors is an integer number (107874021).

Almost surely, 2^215748041 is an apocalyptic number.

It is an amenable number.

215748041 is a deficient number, since it is larger than the sum of its proper divisors (1).

215748041 is an equidigital number, since it uses as much as digits as its factorization.

215748041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 215748041 is about 14688.3641362815. The cubic root of 215748041 is about 599.7666138596.

The spelling of 215748041 in words is "two hundred fifteen million, seven hundred forty-eight thousand, forty-one".