1047431089 has 2 divisors, whose sum is σ = 1047431090. Its totient is φ = 1047431088.

The previous prime is 1047431087. The next prime is 1047431093. The reversal of 1047431089 is 9801347401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 915365025 + 132066064 = 30255^2 + 11492^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047431089 - 2¹ = 1047431087 is a prime.

It is a super-2 number, since 2×1047431089² = 2194223772407451842, which contains 22 as substring.

Together with 1047431087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1047431087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523715544 + 523715545.

It is an arithmetic number, because the mean of its divisors is an integer number (523715545).

Almost surely, 2^1047431089 is an apocalyptic number.

It is an amenable number.

1047431089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047431089 is an equidigital number, since it uses as much as digits as its factorization.

1047431089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1047431089 is about 32364.0400599184. The cubic root of 1047431089 is about 1015.5667809266.

The spelling of 1047431089 in words is "one billion, forty-seven million, four hundred thirty-one thousand, eighty-nine".