1148185397 has 8 divisors (see below), whose sum is σ = 1166901120. Its totient is φ = 1129586080.

The previous prime is 1148185387. The next prime is 1148185417. The reversal of 1148185397 is 7935818411.

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

It is a cyclic number.

It is not a de Polignac number, because 1148185397 - 2⁸ = 1148185141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148185307) 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, 9104 + ... + 48777.

It is an arithmetic number, because the mean of its divisors is an integer number (145862640).

Almost surely, 2^1148185397 is an apocalyptic number.

It is an amenable number.

1148185397 is a deficient number, since it is larger than the sum of its proper divisors (18715723).

1148185397 is an equidigital number, since it uses as much as digits as its factorization.

1148185397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58203.

The product of its digits is 241920, while the sum is 47.

The square root of 1148185397 is about 33884.8844914661. The cubic root of 1148185397 is about 1047.1382078295.

The spelling of 1148185397 in words is "one billion, one hundred forty-eight million, one hundred eighty-five thousand, three hundred ninety-seven".