211448097 has 16 divisors (see below), whose sum is σ = 358007680. Its totient is φ = 120827376.

The previous prime is 211448009. The next prime is 211448123. The reversal of 211448097 is 790844112.

It is not a de Polignac number, because 211448097 - 2²³ = 203059489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211448197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559198 + ... + 559575.

It is an arithmetic number, because the mean of its divisors is an integer number (22375480).

Almost surely, 2^211448097 is an apocalyptic number.

211448097 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

211448097 is a deficient number, since it is larger than the sum of its proper divisors (146559583).

211448097 is a wasteful number, since it uses less digits than its factorization.

211448097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118789 (or 1118783 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 211448097 is about 14541.2550008588. The cubic root of 211448097 is about 595.7553169221.

It can be divided in two parts, 21144 and 8097, that added together give a square (29241 = 171²).

The spelling of 211448097 in words is "two hundred eleven million, four hundred forty-eight thousand, ninety-seven".