1149925865 has 8 divisors (see below), whose sum is σ = 1505357568. Its totient is φ = 836309680.

The previous prime is 1149925859. The next prime is 1149925867. The reversal of 1149925865 is 5685299411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1149925865 - 2⁶ = 1149925801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1149925867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10453817 + ... + 10453926.

It is an arithmetic number, because the mean of its divisors is an integer number (188169696).

Almost surely, 2^1149925865 is an apocalyptic number.

It is an amenable number.

1149925865 is a deficient number, since it is larger than the sum of its proper divisors (355431703).

1149925865 is a wasteful number, since it uses less digits than its factorization.

1149925865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20907759.

The product of its digits is 777600, while the sum is 50.

The square root of 1149925865 is about 33910.5568370677. The cubic root of 1149925865 is about 1047.6670395096.

The spelling of 1149925865 in words is "one billion, one hundred forty-nine million, nine hundred twenty-five thousand, eight hundred sixty-five".