1146870509 has 2 divisors, whose sum is σ = 1146870510. Its totient is φ = 1146870508.

The previous prime is 1146870427. The next prime is 1146870521. The reversal of 1146870509 is 9050786411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1038772900 + 108097609 = 32230^2 + 10397^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146870509 - 2⁸ = 1146870253 is a prime.

It is a super-3 number, since 3×1146870509³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146870539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573435254 + 573435255.

It is an arithmetic number, because the mean of its divisors is an integer number (573435255).

Almost surely, 2^1146870509 is an apocalyptic number.

It is an amenable number.

1146870509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146870509 is an equidigital number, since it uses as much as digits as its factorization.

1146870509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1146870509 is about 33865.4766539613. The cubic root of 1146870509 is about 1046.7383318184.

The spelling of 1146870509 in words is "one billion, one hundred forty-six million, eight hundred seventy thousand, five hundred nine".