210115055461 has 2 divisors, whose sum is σ = 210115055462. Its totient is φ = 210115055460.

The previous prime is 210115055419. The next prime is 210115055467. The reversal of 210115055461 is 164550511012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117230912100 + 92884143361 = 342390^2 + 304769^2 .

It is a cyclic number.

It is not a de Polignac number, because 210115055461 - 2¹³ = 210115047269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210115055467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105057527730 + 105057527731.

It is an arithmetic number, because the mean of its divisors is an integer number (105057527731).

Almost surely, 2^210115055461 is an apocalyptic number.

It is an amenable number.

210115055461 is a deficient number, since it is larger than the sum of its proper divisors (1).

210115055461 is an equidigital number, since it uses as much as digits as its factorization.

210115055461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 210115055461 its reverse (164550511012), we get a palindrome (374665566473).

The spelling of 210115055461 in words is "two hundred ten billion, one hundred fifteen million, fifty-five thousand, four hundred sixty-one".