1325144866 has 16 divisors (see below), whose sum is σ = 2105440344. Its totient is φ = 623361024.

The previous prime is 1325144851. The next prime is 1325144939. The reversal of 1325144866 is 6684415231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1076168025 + 248976841 = 32805^2 + 15779^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111046 + ... + 122398.

Almost surely, 2^1325144866 is an apocalyptic number.

1325144866 is a deficient number, since it is larger than the sum of its proper divisors (780295478).

1325144866 is a wasteful number, since it uses less digits than its factorization.

1325144866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14805.

The product of its digits is 138240, while the sum is 40.

The square root of 1325144866 is about 36402.5392795613. The cubic root of 1325144866 is about 1098.3846444303.

The spelling of 1325144866 in words is "one billion, three hundred twenty-five million, one hundred forty-four thousand, eight hundred sixty-six".