1145379457 has 2 divisors, whose sum is σ = 1145379458. Its totient is φ = 1145379456.

The previous prime is 1145379439. The next prime is 1145379463. The reversal of 1145379457 is 7549735411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1137308176 + 8071281 = 33724^2 + 2841^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145379457 - 2⁷ = 1145379329 is a prime.

It is a super-2 number, since 2×1145379457² = 2623788201035229698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1145379407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572689728 + 572689729.

It is an arithmetic number, because the mean of its divisors is an integer number (572689729).

Almost surely, 2^1145379457 is an apocalyptic number.

It is an amenable number.

1145379457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145379457 is an equidigital number, since it uses as much as digits as its factorization.

1145379457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The square root of 1145379457 is about 33843.4551575338. The cubic root of 1145379457 is about 1046.2845118693.

The spelling of 1145379457 in words is "one billion, one hundred forty-five million, three hundred seventy-nine thousand, four hundred fifty-seven".