1040453987 has 2 divisors, whose sum is σ = 1040453988. Its totient is φ = 1040453986.

The previous prime is 1040453969. The next prime is 1040453989. The reversal of 1040453987 is 7893540401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040453987 - 2²⁶ = 973345123 is a prime.

Together with 1040453989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1040453989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520226993 + 520226994.

It is an arithmetic number, because the mean of its divisors is an integer number (520226994).

Almost surely, 2^1040453987 is an apocalyptic number.

1040453987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040453987 is an equidigital number, since it uses as much as digits as its factorization.

1040453987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1040453987 is about 32256.0689948419. The cubic root of 1040453987 is about 1013.3068058350.

The spelling of 1040453987 in words is "one billion, forty million, four hundred fifty-three thousand, nine hundred eighty-seven".