1145044697 has 2 divisors, whose sum is σ = 1145044698. Its totient is φ = 1145044696.

The previous prime is 1145044657. The next prime is 1145044699. The reversal of 1145044697 is 7964405411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 777517456 + 367527241 = 27884^2 + 19171^2 .

It is an emirp because it is prime and its reverse (7964405411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145044697 - 2¹² = 1145040601 is a prime.

It is a super-2 number, since 2×1145044697² = 2622254716255643618, which contains 22 as substring.

Together with 1145044699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1145044699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572522348 + 572522349.

It is an arithmetic number, because the mean of its divisors is an integer number (572522349).

Almost surely, 2^1145044697 is an apocalyptic number.

It is an amenable number.

1145044697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145044697 is an equidigital number, since it uses as much as digits as its factorization.

1145044697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1145044697 is about 33838.5090835870. The cubic root of 1145044697 is about 1046.1825694288.

The spelling of 1145044697 in words is "one billion, one hundred forty-five million, forty-four thousand, six hundred ninety-seven".