455191487 has 2 divisors, whose sum is σ = 455191488. Its totient is φ = 455191486.

The previous prime is 455191483. The next prime is 455191519. The reversal of 455191487 is 784191554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 455191487 - 2² = 455191483 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455191483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227595743 + 227595744.

It is an arithmetic number, because the mean of its divisors is an integer number (227595744).

Almost surely, 2^455191487 is an apocalyptic number.

455191487 is a deficient number, since it is larger than the sum of its proper divisors (1).

455191487 is an equidigital number, since it uses as much as digits as its factorization.

455191487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 44.

The square root of 455191487 is about 21335.2170600629. The cubic root of 455191487 is about 769.2450502320.

The spelling of 455191487 in words is "four hundred fifty-five million, one hundred ninety-one thousand, four hundred eighty-seven".