1047451619 has 2 divisors, whose sum is σ = 1047451620. Its totient is φ = 1047451618.

The previous prime is 1047451547. The next prime is 1047451631. The reversal of 1047451619 is 9161547401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1047451619 - 2¹⁶ = 1047386083 is a prime.

It is a super-2 number, since 2×1047451619² = 2194309788291442322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1047451519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523725809 + 523725810.

It is an arithmetic number, because the mean of its divisors is an integer number (523725810).

Almost surely, 2^1047451619 is an apocalyptic number.

1047451619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047451619 is an equidigital number, since it uses as much as digits as its factorization.

1047451619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1047451619 is about 32364.3572313741. The cubic root of 1047451619 is about 1015.5734160329.

The spelling of 1047451619 in words is "one billion, forty-seven million, four hundred fifty-one thousand, six hundred nineteen".