1011455161 has 2 divisors, whose sum is σ = 1011455162. Its totient is φ = 1011455160.

The previous prime is 1011455149. The next prime is 1011455167. The reversal of 1011455161 is 1615541101.

1011455161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 669205161 + 342250000 = 25869^2 + 18500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011455161 - 2⁷ = 1011455033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011455167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505727580 + 505727581.

It is an arithmetic number, because the mean of its divisors is an integer number (505727581).

Almost surely, 2^1011455161 is an apocalyptic number.

It is an amenable number.

1011455161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011455161 is an equidigital number, since it uses as much as digits as its factorization.

1011455161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 25.

The square root of 1011455161 is about 31803.3828546587. The cubic root of 1011455161 is about 1003.8038990053.

Adding to 1011455161 its reverse (1615541101), we get a palindrome (2626996262).

The spelling of 1011455161 in words is "one billion, eleven million, four hundred fifty-five thousand, one hundred sixty-one".