1148781927 has 4 divisors (see below), whose sum is σ = 1531709240. Its totient is φ = 765854616.

The previous prime is 1148781913. The next prime is 1148782013. The reversal of 1148781927 is 7291878411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7291878411 = 3 ⋅2430626137.

It is not a de Polignac number, because 1148781927 - 2¹⁵ = 1148749159 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 (1148781427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191463652 + ... + 191463657.

It is an arithmetic number, because the mean of its divisors is an integer number (382927310).

Almost surely, 2^1148781927 is an apocalyptic number.

1148781927 is a deficient number, since it is larger than the sum of its proper divisors (382927313).

1148781927 is an equidigital number, since it uses as much as digits as its factorization.

1148781927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382927312.

The product of its digits is 225792, while the sum is 48.

The square root of 1148781927 is about 33893.6856508701. The cubic root of 1148781927 is about 1047.3195203629.

The spelling of 1148781927 in words is "one billion, one hundred forty-eight million, seven hundred eighty-one thousand, nine hundred twenty-seven".