905120453 has 2 divisors, whose sum is σ = 905120454. Its totient is φ = 905120452.

The previous prime is 905120417. The next prime is 905120471. The reversal of 905120453 is 354021509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 743271169 + 161849284 = 27263^2 + 12722^2 .

It is a cyclic number.

It is not a de Polignac number, because 905120453 - 2¹⁰ = 905119429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (905120053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452560226 + 452560227.

It is an arithmetic number, because the mean of its divisors is an integer number (452560227).

Almost surely, 2^905120453 is an apocalyptic number.

It is an amenable number.

905120453 is a deficient number, since it is larger than the sum of its proper divisors (1).

905120453 is an equidigital number, since it uses as much as digits as its factorization.

905120453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 905120453 is about 30085.2198429727. The cubic root of 905120453 is about 967.3169390157.

The spelling of 905120453 in words is "nine hundred five million, one hundred twenty thousand, four hundred fifty-three".