1148625509 has 2 divisors, whose sum is σ = 1148625510. Its totient is φ = 1148625508.

The previous prime is 1148625479. The next prime is 1148625539. The reversal of 1148625509 is 9055268411.

It is a balanced prime because it is at equal distance from previous prime (1148625479) and next prime (1148625539).

It can be written as a sum of positive squares in only one way, i.e., 676780225 + 471845284 = 26015^2 + 21722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148625509 - 2¹² = 1148621413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148625539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574312754 + 574312755.

It is an arithmetic number, because the mean of its divisors is an integer number (574312755).

Almost surely, 2^1148625509 is an apocalyptic number.

It is an amenable number.

1148625509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148625509 is an equidigital number, since it uses as much as digits as its factorization.

1148625509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 1148625509 is about 33891.3780923703. The cubic root of 1148625509 is about 1047.2719839081.

The spelling of 1148625509 in words is "one billion, one hundred forty-eight million, six hundred twenty-five thousand, five hundred nine".