1148465857 has 32 divisors (see below), whose sum is σ = 1476495360. Its totient is φ = 867438720.

The previous prime is 1148465819. The next prime is 1148465861. The reversal of 1148465857 is 7585648411.

It is a cyclic number.

It is not a de Polignac number, because 1148465857 - 2¹¹ = 1148463809 is a prime.

It is a super-3 number, since 3×1148465857³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1148465857.

It is not an unprimeable number, because it can be changed into a prime (1148465057) 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, 329908 + ... + 333370.

It is an arithmetic number, because the mean of its divisors is an integer number (46140480).

Almost surely, 2^1148465857 is an apocalyptic number.

It is an amenable number.

1148465857 is a deficient number, since it is larger than the sum of its proper divisors (328029503).

1148465857 is a wasteful number, since it uses less digits than its factorization.

1148465857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613.

The product of its digits is 1075200, while the sum is 49.

The square root of 1148465857 is about 33889.0226622132. The cubic root of 1148465857 is about 1047.2234601689.

The spelling of 1148465857 in words is "one billion, one hundred forty-eight million, four hundred sixty-five thousand, eight hundred fifty-seven".