1145340457 has 2 divisors, whose sum is σ = 1145340458. Its totient is φ = 1145340456.

The previous prime is 1145340419. The next prime is 1145340461. The reversal of 1145340457 is 7540435411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1138455081 + 6885376 = 33741^2 + 2624^2 .

It is an emirp because it is prime and its reverse (7540435411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145340457 - 2¹⁵ = 1145307689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145340257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572670228 + 572670229.

It is an arithmetic number, because the mean of its divisors is an integer number (572670229).

Almost surely, 2^1145340457 is an apocalyptic number.

It is an amenable number.

1145340457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145340457 is an equidigital number, since it uses as much as digits as its factorization.

1145340457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 1145340457 is about 33842.8789703240. The cubic root of 1145340457 is about 1046.2726364573.

Adding to 1145340457 its reverse (7540435411), we get a palindrome (8685775868).

The spelling of 1145340457 in words is "one billion, one hundred forty-five million, three hundred forty thousand, four hundred fifty-seven".