1148451709 has 8 divisors (see below), whose sum is σ = 1210252032. Its totient is φ = 1087640400.

The previous prime is 1148451613. The next prime is 1148451719. The reversal of 1148451709 is 9071548411.

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 1148451709 - 2¹⁹ = 1147927421 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 (1148451719) 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, 244869 + ... + 249514.

It is an arithmetic number, because the mean of its divisors is an integer number (151281504).

Almost surely, 2^1148451709 is an apocalyptic number.

It is an amenable number.

1148451709 is a deficient number, since it is larger than the sum of its proper divisors (61800323).

1148451709 is a wasteful number, since it uses less digits than its factorization.

1148451709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494507.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 1148451709 is about 33888.8139214107. The cubic root of 1148451709 is about 1047.2191598877.

The spelling of 1148451709 in words is "one billion, one hundred forty-eight million, four hundred fifty-one thousand, seven hundred nine".