1145254619 has 2 divisors, whose sum is σ = 1145254620. Its totient is φ = 1145254618.

The previous prime is 1145254609. The next prime is 1145254639. The reversal of 1145254619 is 9164525411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1145254619 - 2⁴ = 1145254603 is a prime.

It is a super-4 number, since 4×1145254619⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1145254609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572627309 + 572627310.

It is an arithmetic number, because the mean of its divisors is an integer number (572627310).

Almost surely, 2^1145254619 is an apocalyptic number.

1145254619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145254619 is an equidigital number, since it uses as much as digits as its factorization.

1145254619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 1145254619 is about 33841.6107624918. The cubic root of 1145254619 is about 1046.2464980301.

The spelling of 1145254619 in words is "one billion, one hundred forty-five million, two hundred fifty-four thousand, six hundred nineteen".