1145660659 has 32 divisors (see below), whose sum is σ = 1413748224. Its totient is φ = 913524480.

The previous prime is 1145660641. The next prime is 1145660683. The reversal of 1145660659 is 9560665411.

It is not a de Polignac number, because 1145660659 - 2⁷ = 1145660531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145660629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 535039 + ... + 537175.

It is an arithmetic number, because the mean of its divisors is an integer number (44179632).

Almost surely, 2^1145660659 is an apocalyptic number.

1145660659 is a deficient number, since it is larger than the sum of its proper divisors (268087565).

1145660659 is a wasteful number, since it uses less digits than its factorization.

1145660659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 1145660659 is about 33847.6093542808. The cubic root of 1145660659 is about 1046.3701292663.

The spelling of 1145660659 in words is "one billion, one hundred forty-five million, six hundred sixty thousand, six hundred fifty-nine".