911048981 has 2 divisors, whose sum is σ = 911048982. Its totient is φ = 911048980.

The previous prime is 911048953. The next prime is 911049017. The reversal of 911048981 is 189840119.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 787083025 + 123965956 = 28055^2 + 11134^2 .

It is a cyclic number.

It is not a de Polignac number, because 911048981 - 2¹⁴ = 911032597 is a prime.

It is a super-2 number, since 2×911048981² = 1660020491562276722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (911048881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455524490 + 455524491.

It is an arithmetic number, because the mean of its divisors is an integer number (455524491).

Almost surely, 2^911048981 is an apocalyptic number.

It is an amenable number.

911048981 is a deficient number, since it is larger than the sum of its proper divisors (1).

911048981 is an equidigital number, since it uses as much as digits as its factorization.

911048981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 911048981 is about 30183.5879411312. The cubic root of 911048981 is about 969.4243160030.

The spelling of 911048981 in words is "nine hundred eleven million, forty-eight thousand, nine hundred eighty-one".