1150400171 has 2 divisors, whose sum is σ = 1150400172. Its totient is φ = 1150400170.

The previous prime is 1150400137. The next prime is 1150400179. The reversal of 1150400171 is 1710040511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1150400171 - 2⁶ = 1150400107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1150400179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575200085 + 575200086.

It is an arithmetic number, because the mean of its divisors is an integer number (575200086).

Almost surely, 2^1150400171 is an apocalyptic number.

1150400171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150400171 is an equidigital number, since it uses as much as digits as its factorization.

1150400171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 1150400171 is about 33917.5496019391. The cubic root of 1150400171 is about 1047.8110622602.

Adding to 1150400171 its reverse (1710040511), we get a palindrome (2860440682).

The spelling of 1150400171 in words is "one billion, one hundred fifty million, four hundred thousand, one hundred seventy-one".